121111363608903 has 20 divisors (see below), whose sum is σ = 180920324187768. Its totient is φ = 80740516441680.

The previous prime is 121111363608883. The next prime is 121111363608931. The reversal of 121111363608903 is 309806363111121.

121111363608903 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 1 + 1 + 3 + 636 + 0 + 8 + 9 + 0 + 3 = 666.

It is not a de Polignac number, because 121111363608903 - 2¹² = 121111363604807 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111363608953) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13627125 + ... + 20686257.

Almost surely, 2^{121111363608903} is an apocalyptic number.

121111363608903 is a deficient number, since it is larger than the sum of its proper divisors (59808960578865).

121111363608903 is an equidigital number, since it uses as much as digits as its factorization.

121111363608903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270956 (or 7270947 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 121111363608903 in words is "one hundred twenty-one trillion, one hundred eleven billion, three hundred sixty-three million, six hundred eight thousand, nine hundred three".