11455031312 has 20 divisors (see below), whose sum is σ = 22202128080. Its totient is φ = 5725449888.

The previous prime is 11455031281. The next prime is 11455031321. The reversal of 11455031312 is 21313055411.

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, 82862 + ... + 172557.

It is an arithmetic number, because the mean of its divisors is an integer number (1110106404).

Almost surely, 2^11455031312 is an apocalyptic number.

It is an amenable number.

11455031312 is a deficient number, since it is larger than the sum of its proper divisors (10747096768).

11455031312 is a wasteful number, since it uses less digits than its factorization.

11455031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258230 (or 258224 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 11455031312 its reverse (21313055411), we get a palindrome (32768086723).

The spelling of 11455031312 in words is "eleven billion, four hundred fifty-five million, thirty-one thousand, three hundred twelve".