11625212631 has 4 divisors (see below), whose sum is σ = 15500283512. Its totient is φ = 7750141752.

The previous prime is 11625212609. The next prime is 11625212633. The reversal of 11625212631 is 13621252611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11625212631 - 2¹⁹ = 11624688343 is a prime.

It is a super-2 number, since 2×11625212631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11625212633) 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, 1937535436 + ... + 1937535441.

It is an arithmetic number, because the mean of its divisors is an integer number (3875070878).

Almost surely, 2^11625212631 is an apocalyptic number.

11625212631 is a deficient number, since it is larger than the sum of its proper divisors (3875070881).

11625212631 is an equidigital number, since it uses as much as digits as its factorization.

11625212631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875070880.

The product of its digits is 4320, while the sum is 30.

The spelling of 11625212631 in words is "eleven billion, six hundred twenty-five million, two hundred twelve thousand, six hundred thirty-one".