131311131323223 has 32 divisors (see below), whose sum is σ = 176752960376832. Its totient is φ = 86709384777600.

The previous prime is 131311131323219. The next prime is 131311131323257. The reversal of 131311131323223 is 322323131113131.

It is not a de Polignac number, because 131311131323223 - 2² = 131311131323219 is a prime.

It is a super-2 number, since 2×131311131323223² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131311131323023) 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, 235104313 + ... + 235662173.

It is an arithmetic number, because the mean of its divisors is an integer number (5523530011776).

Almost surely, 2^{131311131323223} is an apocalyptic number.

131311131323223 is a deficient number, since it is larger than the sum of its proper divisors (45441829053609).

131311131323223 is a wasteful number, since it uses less digits than its factorization.

131311131323223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559815.

The product of its digits is 5832, while the sum is 30.

Adding to 131311131323223 its reverse (322323131113131), we get a palindrome (453634262436354).

The spelling of 131311131323223 in words is "one hundred thirty-one trillion, three hundred eleven billion, one hundred thirty-one million, three hundred twenty-three thousand, two hundred twenty-three".