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1202131130320 = 24553283521493
BaseRepresentation
bin10001011111100100100…
…110010101011111010000
311020220220120210202012001
4101133210212111133100
5124143431032132240
62320130150043344
7152564634003661
oct21374446253720
94226816722161
101202131130320
1142390375791a
12174b93349554
138948bc85173
144227d599368
152140bd5189a
hex117e49957d0

1202131130320 has 40 divisors (see below), whose sum is σ = 2847689885736. Its totient is φ = 471779762688.

The previous prime is 1202131130297. The next prime is 1202131130327. The reversal of 1202131130320 is 230311312021.

It can be written as a sum of positive squares in 4 ways, for example, as 649178272656 + 552952857664 = 805716^2 + 743608^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202131130327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141756507 + ... + 141764986.

Almost surely, 21202131130320 is an apocalyptic number.

1202131130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202131130320 is an abundant number, since it is smaller than the sum of its proper divisors (1645558755416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1202131130320 is a wasteful number, since it uses less digits than its factorization.

1202131130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283521559 (or 283521553 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1202131130320 its reverse (230311312021), we get a palindrome (1432442442341).

The spelling of 1202131130320 in words is "one trillion, two hundred two billion, one hundred thirty-one million, one hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 212 265 424 530 848 1060 2120 4240 283521493 567042986 1134085972 1417607465 2268171944 2835214930 4536343888 5670429860 11340859720 15026639129 22681719440 30053278258 60106556516 75133195645 120213113032 150266391290 240426226064 300532782580 601065565160 1202131130320