121371960828 has 24 divisors (see below), whose sum is σ = 284638817232. Its totient is φ = 40251952384.

The previous prime is 121371960821. The next prime is 121371960847. The reversal of 121371960828 is 828069173121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121371960821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25668525 + ... + 25673252.

It is an arithmetic number, because the mean of its divisors is an integer number (11859950718).

Almost surely, 2^121371960828 is an apocalyptic number.

It is an amenable number.

121371960828 is an abundant number, since it is smaller than the sum of its proper divisors (163266856404).

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

121371960828 is a wasteful number, since it uses less digits than its factorization.

121371960828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51341981 (or 51341979 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 121371960828 in words is "one hundred twenty-one billion, three hundred seventy-one million, nine hundred sixty thousand, eight hundred twenty-eight".