1151311512 has 32 divisors (see below), whose sum is σ = 3099685680. Its totient is φ = 354249600.

The previous prime is 1151311507. The next prime is 1151311559. The reversal of 1151311512 is 2151131511.

It is a super-2 number, since 2×1151311512² = 2651036395327452288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1844739 + ... + 1845362.

Almost surely, 2^1151311512 is an apocalyptic number.

1151311512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1151311512 is an abundant number, since it is smaller than the sum of its proper divisors (1948374168).

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

1151311512 is a wasteful number, since it uses less digits than its factorization.

1151311512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690123 (or 3690119 counting only the distinct ones).

The product of its digits is 150, while the sum is 21.

The square root of 1151311512 is about 33930.9815949966. The cubic root of 1151311512 is about 1048.0876793763.

The spelling of 1151311512 in words is "one billion, one hundred fifty-one million, three hundred eleven thousand, five hundred twelve".