11013625631 has 4 divisors (see below), whose sum is σ = 11014306992. Its totient is φ = 11012944272.

The previous prime is 11013625619. The next prime is 11013625669. The reversal of 11013625631 is 13652631011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13652631011 = 523 ⋅26104457.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11013625631 is a prime.

It is a super-2 number, since 2×11013625631² (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 = 11013625594 and 11013625603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013625031) 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, 315830 + ... + 348963.

It is an arithmetic number, because the mean of its divisors is an integer number (2753576748).

Almost surely, 2^11013625631 is an apocalyptic number.

11013625631 is a deficient number, since it is larger than the sum of its proper divisors (681361).

11013625631 is an equidigital number, since it uses as much as digits as its factorization.

11013625631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681360.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 11013625631 in words is "eleven billion, thirteen million, six hundred twenty-five thousand, six hundred thirty-one".