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1200131244312 = 23371113373314079
BaseRepresentation
bin10001011101101101011…
…001011000000100011000
311020201202012200000022220
4101131231121120010120
5124130332044304222
62315155505344040
7152464241155350
oct21355531300430
94221665600286
101200131244312
11422a77888970
12174715638020
138923084a970
144212db2db60
15213414b2b5c
hex1176d658118

1200131244312 has 512 divisors, whose sum is σ = 4150805299200. Its totient is φ = 279052646400.

The previous prime is 1200131244311. The next prime is 1200131244407. The reversal of 1200131244312 is 2134421310021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200131244311) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 294219889 + ... + 294223967.

It is an arithmetic number, because the mean of its divisors is an integer number (8107041600).

Almost surely, 21200131244312 is an apocalyptic number.

1200131244312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200131244312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2075402649600).

1200131244312 is an abundant number, since it is smaller than the sum of its proper divisors (2950674054888).

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

1200131244312 is a wasteful number, since it uses less digits than its factorization.

1200131244312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487 (or 4483 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1200131244312 its reverse (2134421310021), we get a palindrome (3334552554333).

The spelling of 1200131244312 in words is "one trillion, two hundred billion, one hundred thirty-one million, two hundred forty-four thousand, three hundred twelve".