123441402137 has 2 divisors, whose sum is σ = 123441402138. Its totient is φ = 123441402136.

The previous prime is 123441402131. The next prime is 123441402143. The reversal of 123441402137 is 731204144321.

It is a balanced prime because it is at equal distance from previous prime (123441402131) and next prime (123441402143).

It can be written as a sum of positive squares in only one way, i.e., 66063906841 + 57377495296 = 257029^2 + 239536^2 .

It is a cyclic number.

It is not a de Polignac number, because 123441402137 - 2³⁰ = 122367660313 is a prime.

It is not a weakly prime, because it can be changed into another prime (123441402131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61720701068 + 61720701069.

It is an arithmetic number, because the mean of its divisors is an integer number (61720701069).

Almost surely, 2^123441402137 is an apocalyptic number.

It is an amenable number.

123441402137 is a deficient number, since it is larger than the sum of its proper divisors (1).

123441402137 is an equidigital number, since it uses as much as digits as its factorization.

123441402137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

Adding to 123441402137 its reverse (731204144321), we get a palindrome (854645546458).

The spelling of 123441402137 in words is "one hundred twenty-three billion, four hundred forty-one million, four hundred two thousand, one hundred thirty-seven".