123132511523473 has 2 divisors, whose sum is σ = 123132511523474. Its totient is φ = 123132511523472.

The previous prime is 123132511523471. The next prime is 123132511523519. The reversal of 123132511523473 is 374325115231321.

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., 122569520916544 + 562990606929 = 11071112^2 + 750327^2 .

It is a cyclic number.

It is not a de Polignac number, because 123132511523473 - 2¹ = 123132511523471 is a prime.

It is a super-2 number, since 2×123132511523473² (a number of 29 digits) contains 22 as substring.

Together with 123132511523471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (123132511523471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61566255761736 + 61566255761737.

It is an arithmetic number, because the mean of its divisors is an integer number (61566255761737).

Almost surely, 2^{123132511523473} is an apocalyptic number.

It is an amenable number.

123132511523473 is a deficient number, since it is larger than the sum of its proper divisors (1).

123132511523473 is an equidigital number, since it uses as much as digits as its factorization.

123132511523473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 43.

Adding to 123132511523473 its reverse (374325115231321), we get a palindrome (497457626754794).

The spelling of 123132511523473 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, five hundred eleven million, five hundred twenty-three thousand, four hundred seventy-three".