121013003020 has 48 divisors (see below), whose sum is σ = 312772074048. Its totient is φ = 38298620160.

The previous prime is 121013003009. The next prime is 121013003047. The reversal of 121013003020 is 20300310121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33243511 + ... + 33247150.

It is an arithmetic number, because the mean of its divisors is an integer number (6516084876).

Almost surely, 2^121013003020 is an apocalyptic number.

121013003020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121013003020 is an abundant number, since it is smaller than the sum of its proper divisors (191759071028).

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

121013003020 is a wasteful number, since it uses less digits than its factorization.

121013003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66490690 (or 66490688 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 121013003020 its reverse (20300310121), we get a palindrome (141313313141).

The spelling of 121013003020 in words is "one hundred twenty-one billion, thirteen million, three thousand, twenty".