11331230232131 has 16 divisors (see below), whose sum is σ = 11495045266848. Its totient is φ = 11167650662400.

The previous prime is 11331230232079. The next prime is 11331230232139. The reversal of 11331230232131 is 13123203213311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331230232131 is a prime.

It is a super-2 number, since 2×11331230232131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11331230232131.

It is not an unprimeable number, because it can be changed into a prime (11331230232139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724449071 + ... + 724464711.

It is an arithmetic number, because the mean of its divisors is an integer number (718440329178).

Almost surely, 2^{11331230232131} is an apocalyptic number.

11331230232131 is a deficient number, since it is larger than the sum of its proper divisors (163815034717).

11331230232131 is a wasteful number, since it uses less digits than its factorization.

11331230232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22502.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 11331230232131 its reverse (13123203213311), we get a palindrome (24454433445442).

The spelling of 11331230232131 in words is "eleven trillion, three hundred thirty-one billion, two hundred thirty million, two hundred thirty-two thousand, one hundred thirty-one".