12513050121 has 16 divisors (see below), whose sum is σ = 19600862400. Its totient is φ = 7000307520.

The previous prime is 12513050119. The next prime is 12513050129. The reversal of 12513050121 is 12105031521.

It is not a de Polignac number, because 12513050121 - 2¹ = 12513050119 is a prime.

It is a super-2 number, since 2×12513050121² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12513050129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14583546 + ... + 14584403.

It is an arithmetic number, because the mean of its divisors is an integer number (1225053900).

Almost surely, 2^12513050121 is an apocalyptic number.

12513050121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12513050121 is a deficient number, since it is larger than the sum of its proper divisors (7087812279).

12513050121 is a wasteful number, since it uses less digits than its factorization.

12513050121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29167976.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 12513050121 its reverse (12105031521), we get a palindrome (24618081642).

The spelling of 12513050121 in words is "twelve billion, five hundred thirteen million, fifty thousand, one hundred twenty-one".