11331201310231 has 32 divisors (see below), whose sum is σ = 13110493930560. Its totient is φ = 9678821376000.

The previous prime is 11331201310201. The next prime is 11331201310237. The reversal of 11331201310231 is 13201310213311.

It is a cyclic number.

It is not a de Polignac number, because 11331201310231 - 2⁷ = 11331201310103 is a prime.

It is a super-2 number, since 2×11331201310231² (a number of 27 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 (11331201310237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656606155 + ... + 656623411.

It is an arithmetic number, because the mean of its divisors is an integer number (409702935330).

Almost surely, 2^{11331201310231} is an apocalyptic number.

11331201310231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11331201310231 is a deficient number, since it is larger than the sum of its proper divisors (1779292620329).

11331201310231 is a wasteful number, since it uses less digits than its factorization.

11331201310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22995.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 11331201310231 its reverse (13201310213311), we get a palindrome (24532511523542).

The spelling of 11331201310231 in words is "eleven trillion, three hundred thirty-one billion, two hundred one million, three hundred ten thousand, two hundred thirty-one".