11011238972 has 12 divisors (see below), whose sum is σ = 19324884600. Its totient is φ = 5489843376.

The previous prime is 11011238957. The next prime is 11011239079. The reversal of 11011238972 is 27983211011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3942458 + ... + 3945249.

It is an arithmetic number, because the mean of its divisors is an integer number (1610407050).

Almost surely, 2^11011238972 is an apocalyptic number.

It is an amenable number.

11011238972 is a deficient number, since it is larger than the sum of its proper divisors (8313645628).

11011238972 is a wasteful number, since it uses less digits than its factorization.

11011238972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888060 (or 7888058 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 35.

Adding to 11011238972 its reverse (27983211011), we get a palindrome (38994449983).

The spelling of 11011238972 in words is "eleven billion, eleven million, two hundred thirty-eight thousand, nine hundred seventy-two".