11131012321231 has 16 divisors (see below), whose sum is σ = 12784742691840. Its totient is φ = 9584478558720.

The previous prime is 11131012321213. The next prime is 11131012321279. The reversal of 11131012321231 is 13212321013111.

11131012321231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11131012321231 - 2¹¹ = 11131012319183 is a prime.

It is a super-2 number, since 2×11131012321231² (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 (11131012327231) 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, 4679250 + ... + 6645103.

It is an arithmetic number, because the mean of its divisors is an integer number (799046418240).

Almost surely, 2^{11131012321231} is an apocalyptic number.

11131012321231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11131012321231 is a deficient number, since it is larger than the sum of its proper divisors (1653730370609).

11131012321231 is a wasteful number, since it uses less digits than its factorization.

11131012321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11329086.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11131012321231 its reverse (13212321013111), we get a palindrome (24343333334342).

The spelling of 11131012321231 in words is "eleven trillion, one hundred thirty-one billion, twelve million, three hundred twenty-one thousand, two hundred thirty-one".