11121201232 has 20 divisors (see below), whose sum is σ = 21590180640. Its totient is φ = 5549541728.

The previous prime is 11121201193. The next prime is 11121201263. The reversal of 11121201232 is 23210212111.

It is a super-2 number, since 2×11121201232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682882 + ... + 698977.

It is an arithmetic number, because the mean of its divisors is an integer number (1079509032).

Almost surely, 2^11121201232 is an apocalyptic number.

It is an amenable number.

11121201232 is a deficient number, since it is larger than the sum of its proper divisors (10468979408).

11121201232 is a wasteful number, since it uses less digits than its factorization.

11121201232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382370 (or 1382364 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11121201232 its reverse (23210212111), we get a palindrome (34331413343).

The spelling of 11121201232 in words is "eleven billion, one hundred twenty-one million, two hundred one thousand, two hundred thirty-two".