123413437457 has 2 divisors, whose sum is σ = 123413437458. Its totient is φ = 123413437456.

The previous prime is 123413437363. The next prime is 123413437471. The reversal of 123413437457 is 754734314321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119519552656 + 3893884801 = 345716^2 + 62401^2 .

It is a cyclic number.

It is not a de Polignac number, because 123413437457 - 2¹⁴ = 123413421073 is a prime.

It is not a weakly prime, because it can be changed into another prime (123413437487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61706718728 + 61706718729.

It is an arithmetic number, because the mean of its divisors is an integer number (61706718729).

Almost surely, 2^123413437457 is an apocalyptic number.

It is an amenable number.

123413437457 is a deficient number, since it is larger than the sum of its proper divisors (1).

123413437457 is an equidigital number, since it uses as much as digits as its factorization.

123413437457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 44.

The spelling of 123413437457 in words is "one hundred twenty-three billion, four hundred thirteen million, four hundred thirty-seven thousand, four hundred fifty-seven".