121039688894 has 24 divisors (see below), whose sum is σ = 186216326400. Its totient is φ = 59005520640.

The previous prime is 121039688881. The next prime is 121039688899. The reversal of 121039688894 is 498886930121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121039688899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5580182 + ... + 5601830.

It is an arithmetic number, because the mean of its divisors is an integer number (7759013600).

Almost surely, 2^121039688894 is an apocalyptic number.

121039688894 is a deficient number, since it is larger than the sum of its proper divisors (65176637506).

121039688894 is a wasteful number, since it uses less digits than its factorization.

121039688894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23396 (or 23355 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 59.

The spelling of 121039688894 in words is "one hundred twenty-one billion, thirty-nine million, six hundred eighty-eight thousand, eight hundred ninety-four".