121020233120 has 48 divisors (see below), whose sum is σ = 287391774600. Its totient is φ = 48157261824.

The previous prime is 121020233099. The next prime is 121020233137. The reversal of 121020233120 is 21332020121.

It can be written as a sum of positive squares in 4 ways, for example, as 44098320016 + 76921913104 = 209996^2 + 277348^2 .

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, 1928645 + ... + 1990404.

Almost surely, 2^121020233120 is an apocalyptic number.

121020233120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020233120 is an abundant number, since it is smaller than the sum of its proper divisors (166371541480).

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

121020233120 is a wasteful number, since it uses less digits than its factorization.

121020233120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919257 (or 3919249 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121020233120 its reverse (21332020121), we get a palindrome (142352253241).

The spelling of 121020233120 in words is "one hundred twenty-one billion, twenty million, two hundred thirty-three thousand, one hundred twenty".