123441402131 has 2 divisors, whose sum is σ = 123441402132. Its totient is φ = 123441402130.

The previous prime is 123441402067. The next prime is 123441402137. The reversal of 123441402131 is 131204144321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123441402131 - 2⁶ = 123441402067 is a prime.

It is a super-2 number, since 2×123441402131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123441402131.

It is not a weakly prime, because it can be changed into another prime (123441402137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61720701065 + 61720701066.

It is an arithmetic number, because the mean of its divisors is an integer number (61720701066).

Almost surely, 2^123441402131 is an apocalyptic number.

123441402131 is a deficient number, since it is larger than the sum of its proper divisors (1).

123441402131 is an equidigital number, since it uses as much as digits as its factorization.

123441402131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 123441402131 its reverse (131204144321), we get a palindrome (254645546452).

The spelling of 123441402131 in words is "one hundred twenty-three billion, four hundred forty-one million, four hundred two thousand, one hundred thirty-one".