121263509492908 has 12 divisors (see below), whose sum is σ = 212222528293552. Its totient is φ = 60628501409040.

The previous prime is 121263509492849. The next prime is 121263509492963. The reversal of 121263509492908 is 809294905362121.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813250488 + ... + 813399583.

Almost surely, 2^{121263509492908} is an apocalyptic number.

It is an amenable number.

121263509492908 is a deficient number, since it is larger than the sum of its proper divisors (90959018800644).

121263509492908 is a wasteful number, since it uses less digits than its factorization.

121263509492908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626668712 (or 1626668710 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 121263509492908 in words is "one hundred twenty-one trillion, two hundred sixty-three billion, five hundred nine million, four hundred ninety-two thousand, nine hundred eight".