121004636525 has 12 divisors (see below), whose sum is σ = 150616273632. Its totient is φ = 96435629040.

The previous prime is 121004636509. The next prime is 121004636551. The reversal of 121004636525 is 525636400121.

It is not a de Polignac number, because 121004636525 - 2⁴ = 121004636509 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 9195299 + ... + 9208448.

It is an arithmetic number, because the mean of its divisors is an integer number (12551356136).

Almost surely, 2^121004636525 is an apocalyptic number.

It is an amenable number.

121004636525 is a deficient number, since it is larger than the sum of its proper divisors (29611637107).

121004636525 is a wasteful number, since it uses less digits than its factorization.

121004636525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404020 (or 18404015 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 121004636525 in words is "one hundred twenty-one billion, four million, six hundred thirty-six thousand, five hundred twenty-five".