11211310131 has 16 divisors (see below), whose sum is σ = 17086086144. Its totient is φ = 6405643584.

The previous prime is 11211310027. The next prime is 11211310139. The reversal of 11211310131 is 13101311211.

It is not a de Polignac number, because 11211310131 - 2¹³ = 11211301939 is a prime.

It is a super-2 number, since 2×11211310131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11211310131.

It is not an unprimeable number, because it can be changed into a prime (11211310139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159511 + ... + 218783.

It is an arithmetic number, because the mean of its divisors is an integer number (1067880384).

Almost surely, 2^11211310131 is an apocalyptic number.

11211310131 is a deficient number, since it is larger than the sum of its proper divisors (5874776013).

11211310131 is an equidigital number, since it uses as much as digits as its factorization.

11211310131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68290.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11211310131 its reverse (13101311211), we get a palindrome (24312621342).

The spelling of 11211310131 in words is "eleven billion, two hundred eleven million, three hundred ten thousand, one hundred thirty-one".