11231251052 has 12 divisors (see below), whose sum is σ = 22462502160. Its totient is φ = 4813393296.

The previous prime is 11231251043. The next prime is 11231251061. The reversal of 11231251052 is 25015213211.

It is an interprime number because it is at equal distance from previous prime (11231251043) and next prime (11231251061).

11231251052 is an admirable number.

It is a super-2 number, since 2×11231251052² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200558027 + ... + 200558082.

It is an arithmetic number, because the mean of its divisors is an integer number (1871875180).

Almost surely, 2^11231251052 is an apocalyptic number.

It is an amenable number.

11231251052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11231251052 is a wasteful number, since it uses less digits than its factorization.

11231251052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401116120 (or 401116118 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 11231251052 its reverse (25015213211), we get a palindrome (36246464263).

The spelling of 11231251052 in words is "eleven billion, two hundred thirty-one million, two hundred fifty-one thousand, fifty-two".