11240620031 has 12 divisors (see below), whose sum is σ = 12084617832. Its totient is φ = 10451922048.

The previous prime is 11240620021. The next prime is 11240620051. The reversal of 11240620031 is 13002604211.

It is a de Polignac number, because none of the positive numbers 2^k-11240620031 is a prime.

It is a super-2 number, since 2×11240620031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11240619985 and 11240620012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240620021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210320 + ... + 258293.

It is an arithmetic number, because the mean of its divisors is an integer number (1007051486).

Almost surely, 2^11240620031 is an apocalyptic number.

11240620031 is a deficient number, since it is larger than the sum of its proper divisors (843997801).

11240620031 is an equidigital number, since it uses as much as digits as its factorization.

11240620031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468730 (or 468713 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 11240620031 in words is "eleven billion, two hundred forty million, six hundred twenty thousand, thirty-one".