121037869008 has 90 divisors (see below), whose sum is σ = 394042099074. Its totient is φ = 34582246272.

The previous prime is 121037869003. The next prime is 121037869019. The reversal of 121037869008 is 800968730121.

121037869008 is a `hidden beast` number, since 1 + 210 + 378 + 69 + 0 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 111657559104 + 9380309904 = 334152^2 + 96852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121037869003) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8569891 + ... + 8584002.

Almost surely, 2^121037869008 is an apocalyptic number.

121037869008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

121037869008 is an abundant number, since it is smaller than the sum of its proper divisors (273004230066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121037869008 is a wasteful number, since it uses less digits than its factorization.

121037869008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17153921 (or 17153905 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 121037869008 in words is "one hundred twenty-one billion, thirty-seven million, eight hundred sixty-nine thousand, eight".