123321342311131 has 2 divisors, whose sum is σ = 123321342311132. Its totient is φ = 123321342311130.

The previous prime is 123321342311077. The next prime is 123321342311177. The reversal of 123321342311131 is 131113243123321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123321342311131 - 2³⁵ = 123286982572763 is a prime.

It is a super-2 number, since 2×123321342311131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123321342311093 and 123321342311102.

It is not a weakly prime, because it can be changed into another prime (123321342381131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61660671155565 + 61660671155566.

It is an arithmetic number, because the mean of its divisors is an integer number (61660671155566).

Almost surely, 2^{123321342311131} is an apocalyptic number.

123321342311131 is a deficient number, since it is larger than the sum of its proper divisors (1).

123321342311131 is an equidigital number, since it uses as much as digits as its factorization.

123321342311131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

Adding to 123321342311131 its reverse (131113243123321), we get a palindrome (254434585434452).

The spelling of 123321342311131 in words is "one hundred twenty-three trillion, three hundred twenty-one billion, three hundred forty-two million, three hundred eleven thousand, one hundred thirty-one".