1312775501900 has 36 divisors (see below), whose sum is σ = 2858002133448. Its totient is φ = 523399731840.

The previous prime is 1312775501893. The next prime is 1312775501959. The reversal of 1312775501900 is 91055772131.

It is a super-2 number, since 2×1312775501900² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21350009 + ... + 21411408.

Almost surely, 2^{1312775501900} is an apocalyptic number.

1312775501900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312775501900 is an abundant number, since it is smaller than the sum of its proper divisors (1545226631548).

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

1312775501900 is a wasteful number, since it uses less digits than its factorization.

1312775501900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42761738 (or 42761731 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 41.

The spelling of 1312775501900 in words is "one trillion, three hundred twelve billion, seven hundred seventy-five million, five hundred one thousand, nine hundred".