121030020331 has 16 divisors (see below), whose sum is σ = 139037310720. Its totient is φ = 104277935520.

The previous prime is 121030020329. The next prime is 121030020361. The reversal of 121030020331 is 133020030121.

It is not a de Polignac number, because 121030020331 - 2¹ = 121030020329 is a prime.

It is a super-2 number, since 2×121030020331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121030020301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2166825 + ... + 2221978.

It is an arithmetic number, because the mean of its divisors is an integer number (8689831920).

Almost surely, 2^121030020331 is an apocalyptic number.

121030020331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121030020331 is a deficient number, since it is larger than the sum of its proper divisors (18007290389).

121030020331 is a wasteful number, since it uses less digits than its factorization.

121030020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388946.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 121030020331 its reverse (133020030121), we get a palindrome (254050050452).

The spelling of 121030020331 in words is "one hundred twenty-one billion, thirty million, twenty thousand, three hundred thirty-one".