11124572137 has 4 divisors (see below), whose sum is σ = 12713796736. Its totient is φ = 9535347540.

The previous prime is 11124572131. The next prime is 11124572191. The reversal of 11124572137 is 73127542111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11124572137 is a prime.

It is a super-2 number, since 2×11124572137² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11124572131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794612289 + ... + 794612302.

It is an arithmetic number, because the mean of its divisors is an integer number (3178449184).

Almost surely, 2^11124572137 is an apocalyptic number.

It is an amenable number.

11124572137 is a deficient number, since it is larger than the sum of its proper divisors (1589224599).

11124572137 is an equidigital number, since it uses as much as digits as its factorization.

11124572137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589224598.

The product of its digits is 11760, while the sum is 34.

The spelling of 11124572137 in words is "eleven billion, one hundred twenty-four million, five hundred seventy-two thousand, one hundred thirty-seven".