1151110111512 has 128 divisors (see below), whose sum is σ = 2939316318720. Its totient is φ = 375580800000.

The previous prime is 1151110111469. The next prime is 1151110111553. The reversal of 1151110111512 is 2151110111511.

It is a super-2 number, since 2×1151110111512² (a number of 25 digits) 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 31 ways as a sum of consecutive naturals, for example, 383574012 + ... + 383577012.

It is an arithmetic number, because the mean of its divisors is an integer number (22963408740).

Almost surely, 2^{1151110111512} is an apocalyptic number.

1151110111512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1151110111512 is an abundant number, since it is smaller than the sum of its proper divisors (1788206207208).

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

1151110111512 is a wasteful number, since it uses less digits than its factorization.

1151110111512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625 (or 4621 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 21.

Subtracting 1151110111512 from its reverse (2151110111511), we obtain a palindrome (999999999999).

The spelling of 1151110111512 in words is "one trillion, one hundred fifty-one billion, one hundred ten million, one hundred eleven thousand, five hundred twelve".