121073361778 has 16 divisors (see below), whose sum is σ = 185871314304. Its totient is φ = 59121774160.

The previous prime is 121073361737. The next prime is 121073361797. The reversal of 121073361778 is 877163370121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1335133 + ... + 1422928.

It is an arithmetic number, because the mean of its divisors is an integer number (11616957144).

Almost surely, 2^121073361778 is an apocalyptic number.

121073361778 is a deficient number, since it is larger than the sum of its proper divisors (64797952526).

121073361778 is a wasteful number, since it uses less digits than its factorization.

121073361778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758577.

The product of its (nonzero) digits is 296352, while the sum is 46.

The spelling of 121073361778 in words is "one hundred twenty-one billion, seventy-three million, three hundred sixty-one thousand, seven hundred seventy-eight".