123521413010025 has 12 divisors (see below), whose sum is σ = 204222069510032. Its totient is φ = 65878086938640.

The previous prime is 123521413009991. The next prime is 123521413010033. The reversal of 123521413010025 is 520010314125321.

It is a happy number.

It is not a de Polignac number, because 123521413010025 - 2¹¹ = 123521413007977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123521413009974 and 123521413010001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 823476086659 + ... + 823476086808.

Almost surely, 2^{123521413010025} is an apocalyptic number.

123521413010025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123521413010025 is a deficient number, since it is larger than the sum of its proper divisors (80700656500007).

123521413010025 is a wasteful number, since it uses less digits than its factorization.

123521413010025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646952173480 (or 1646952173475 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 123521413010025 its reverse (520010314125321), we get a palindrome (643531727135346).

The spelling of 123521413010025 in words is "one hundred twenty-three trillion, five hundred twenty-one billion, four hundred thirteen million, ten thousand, twenty-five".