11102312131 has 4 divisors (see below), whose sum is σ = 11460451264. Its totient is φ = 10744173000.

The previous prime is 11102312113. The next prime is 11102312149. The reversal of 11102312131 is 13121320111.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (11102312113) and next prime (11102312149).

It is a cyclic number.

It is not a de Polignac number, because 11102312131 - 2⁷ = 11102312003 is a prime.

It is a super-2 number, since 2×11102312131² (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 (11102312101) 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, 179069520 + ... + 179069581.

It is an arithmetic number, because the mean of its divisors is an integer number (2865112816).

Almost surely, 2^11102312131 is an apocalyptic number.

11102312131 is a deficient number, since it is larger than the sum of its proper divisors (358139133).

11102312131 is an equidigital number, since it uses as much as digits as its factorization.

11102312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358139132.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11102312131 its reverse (13121320111), we get a palindrome (24223632242).

The spelling of 11102312131 in words is "eleven billion, one hundred two million, three hundred twelve thousand, one hundred thirty-one".