11331130220231 has 4 divisors (see below), whose sum is σ = 11927505495000. Its totient is φ = 10734754945464.

The previous prime is 11331130220227. The next prime is 11331130220239. The reversal of 11331130220231 is 13202203113311.

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

It is a cyclic number.

It is not a de Polignac number, because 11331130220231 - 2² = 11331130220227 is a prime.

It is a super-2 number, since 2×11331130220231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331130220197 and 11331130220206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331130220239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298187637356 + ... + 298187637393.

It is an arithmetic number, because the mean of its divisors is an integer number (2981876373750).

Almost surely, 2^{11331130220231} is an apocalyptic number.

11331130220231 is a deficient number, since it is larger than the sum of its proper divisors (596375274769).

11331130220231 is an equidigital number, since it uses as much as digits as its factorization.

11331130220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596375274768.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11331130220231 its reverse (13202203113311), we get a palindrome (24533333333542).

The spelling of 11331130220231 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty million, two hundred twenty thousand, two hundred thirty-one".