12523146634631 has 4 divisors (see below), whose sum is σ = 12529926899952. Its totient is φ = 12516366369312.

The previous prime is 12523146634619. The next prime is 12523146634637. The reversal of 12523146634631 is 13643664132521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12523146634631 - 2¹⁰ = 12523146633607 is a prime.

It is a super-2 number, since 2×12523146634631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523146634637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390129890 + ... + 3390133583.

It is an arithmetic number, because the mean of its divisors is an integer number (3132481724988).

Almost surely, 2^{12523146634631} is an apocalyptic number.

12523146634631 is a deficient number, since it is larger than the sum of its proper divisors (6780265321).

12523146634631 is an equidigital number, since it uses as much as digits as its factorization.

12523146634631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780265320.

The product of its digits is 1866240, while the sum is 47.

The spelling of 12523146634631 in words is "twelve trillion, five hundred twenty-three billion, one hundred forty-six million, six hundred thirty-four thousand, six hundred thirty-one".