123134143431253 has 2 divisors, whose sum is σ = 123134143431254. Its totient is φ = 123134143431252.

The previous prime is 123134143431251. The next prime is 123134143431317. The reversal of 123134143431253 is 352134341431321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117092266362724 + 6041877068529 = 10820918^2 + 2458023^2 .

It is a cyclic number.

It is not a de Polignac number, because 123134143431253 - 2¹ = 123134143431251 is a prime.

Together with 123134143431251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123134143431251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61567071715626 + 61567071715627.

It is an arithmetic number, because the mean of its divisors is an integer number (61567071715627).

Almost surely, 2^{123134143431253} is an apocalyptic number.

It is an amenable number.

123134143431253 is a deficient number, since it is larger than the sum of its proper divisors (1).

123134143431253 is an equidigital number, since it uses as much as digits as its factorization.

123134143431253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 40.

Adding to 123134143431253 its reverse (352134341431321), we get a palindrome (475268484862574).

The spelling of 123134143431253 in words is "one hundred twenty-three trillion, one hundred thirty-four billion, one hundred forty-three million, four hundred thirty-one thousand, two hundred fifty-three".