123134421337 has 2 divisors, whose sum is σ = 123134421338. Its totient is φ = 123134421336.

The previous prime is 123134421313. The next prime is 123134421343. The reversal of 123134421337 is 733124431321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97658750016 + 25475671321 = 312504^2 + 159611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123134421337 is a prime.

It is not a weakly prime, because it can be changed into another prime (123134421737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61567210668 + 61567210669.

It is an arithmetic number, because the mean of its divisors is an integer number (61567210669).

Almost surely, 2^123134421337 is an apocalyptic number.

It is an amenable number.

123134421337 is a deficient number, since it is larger than the sum of its proper divisors (1).

123134421337 is an equidigital number, since it uses as much as digits as its factorization.

123134421337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 34.

Adding to 123134421337 its reverse (733124431321), we get a palindrome (856258852658).

The spelling of 123134421337 in words is "one hundred twenty-three billion, one hundred thirty-four million, four hundred twenty-one thousand, three hundred thirty-seven".