12121503013 has 24 divisors (see below), whose sum is σ = 13099518080. Its totient is φ = 11212231680.

The previous prime is 12121503011. The next prime is 12121503019. The reversal of 12121503013 is 31030512121.

It is not a de Polignac number, because 12121503013 - 2¹ = 12121503011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121503011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5501170 + ... + 5503372.

Almost surely, 2^12121503013 is an apocalyptic number.

It is an amenable number.

12121503013 is a deficient number, since it is larger than the sum of its proper divisors (978015067).

12121503013 is a wasteful number, since it uses less digits than its factorization.

12121503013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557 (or 2540 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The spelling of 12121503013 in words is "twelve billion, one hundred twenty-one million, five hundred three thousand, thirteen".