121030112020 has 48 divisors (see below), whose sum is σ = 258625382400. Its totient is φ = 47567160576.

The previous prime is 121030111997. The next prime is 121030112051. The reversal of 121030112020 is 20211030121.

It is a congruent number.

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, 226381 + ... + 541579.

It is an arithmetic number, because the mean of its divisors is an integer number (5388028800).

Almost surely, 2^121030112020 is an apocalyptic number.

121030112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121030112020 is an abundant number, since it is smaller than the sum of its proper divisors (137595270380).

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

121030112020 is a wasteful number, since it uses less digits than its factorization.

121030112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315544 (or 315542 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121030112020 its reverse (20211030121), we get a palindrome (141241142141).

The spelling of 121030112020 in words is "one hundred twenty-one billion, thirty million, one hundred twelve thousand, twenty".