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1031331023020 = 22551566551151
BaseRepresentation
bin11110000001000000001…
…11101000100010101100
310122121001020021022012001
433000200013220202230
5113344131220214040
62105441551022044
7134340226024324
oct17004007504254
93577036238161
101031331023020
11368426526251
12147a6680a924
137633c33b40c
1437cb956a284
151bc6215c59a
hexf0201e88ac

1031331023020 has 12 divisors (see below), whose sum is σ = 2165795148384. Its totient is φ = 412532409200.

The previous prime is 1031331022991. The next prime is 1031331023057. The reversal of 1031331023020 is 203201331301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25783275556 + ... + 25783275595.

It is an arithmetic number, because the mean of its divisors is an integer number (180482929032).

Almost surely, 21031331023020 is an apocalyptic number.

1031331023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031331023020 is an abundant number, since it is smaller than the sum of its proper divisors (1134464125364).

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

1031331023020 is a wasteful number, since it uses less digits than its factorization.

1031331023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51566551160 (or 51566551158 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1031331023020 its reverse (203201331301), we get a palindrome (1234532354321).

The spelling of 1031331023020 in words is "one trillion, thirty-one billion, three hundred thirty-one million, twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 51566551151 103133102302 206266204604 257832755755 515665511510 1031331023020