121154432313025 has 24 divisors (see below), whose sum is σ = 150767518318784. Its totient is φ = 96577748539200.

The previous prime is 121154432312939. The next prime is 121154432313043. The reversal of 121154432313025 is 520313234451121.

It is not a de Polignac number, because 121154432313025 - 2⁴³ = 112358339290817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217497412 + ... + 218053738.

Almost surely, 2^{121154432313025} is an apocalyptic number.

It is an amenable number.

121154432313025 is a deficient number, since it is larger than the sum of its proper divisors (29613086005759).

121154432313025 is a wasteful number, since it uses less digits than its factorization.

121154432313025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587401 (or 587396 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 121154432313025 its reverse (520313234451121), we get a palindrome (641467666764146).

The spelling of 121154432313025 in words is "one hundred twenty-one trillion, one hundred fifty-four billion, four hundred thirty-two million, three hundred thirteen thousand, twenty-five".