12520046121 has 8 divisors (see below), whose sum is σ = 18210976224. Its totient is φ = 7587906720.

The previous prime is 12520046093. The next prime is 12520046171. The reversal of 12520046121 is 12164002521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12520046121 - 2¹¹ = 12520044073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12520046091 and 12520046100.

It is not an unprimeable number, because it can be changed into a prime (12520046171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189697636 + ... + 189697701.

It is an arithmetic number, because the mean of its divisors is an integer number (2276372028).

Almost surely, 2^12520046121 is an apocalyptic number.

12520046121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12520046121 is a deficient number, since it is larger than the sum of its proper divisors (5690930103).

12520046121 is a wasteful number, since it uses less digits than its factorization.

12520046121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379395351.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 12520046121 its reverse (12164002521), we get a palindrome (24684048642).

The spelling of 12520046121 in words is "twelve billion, five hundred twenty million, forty-six thousand, one hundred twenty-one".