131222313123 has 32 divisors (see below), whose sum is σ = 196860091392. Its totient is φ = 77065824000.

The previous prime is 131222313113. The next prime is 131222313151. The reversal of 131222313123 is 321313222131.

It is not a de Polignac number, because 131222313123 - 2⁴ = 131222313107 is a prime.

It is a super-2 number, since 2×131222313123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131222313093 and 131222313102.

It is not an unprimeable number, because it can be changed into a prime (131222313113) 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, 262186 + ... + 575487.

It is an arithmetic number, because the mean of its divisors is an integer number (6151877856).

Almost surely, 2^131222313123 is an apocalyptic number.

131222313123 is a deficient number, since it is larger than the sum of its proper divisors (65637778269).

131222313123 is a wasteful number, since it uses less digits than its factorization.

131222313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837835.

The product of its digits is 1296, while the sum is 24.

Adding to 131222313123 its reverse (321313222131), we get a palindrome (452535535254).

The spelling of 131222313123 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred thirteen thousand, one hundred twenty-three".