121303031130 has 24 divisors (see below), whose sum is σ = 315387881172. Its totient is φ = 32347474944.

The previous prime is 121303031077. The next prime is 121303031173. The reversal of 121303031130 is 31130303121.

It is a happy number.

121303031130 is a `hidden beast` number, since 1 + 21 + 303 + 0 + 311 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 104023665729 + 17279365401 = 322527^2 + 131451^2 .

It is a super-2 number, since 2×121303031130² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 673905639 + ... + 673905818.

Almost surely, 2^121303031130 is an apocalyptic number.

121303031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121303031130 is an abundant number, since it is smaller than the sum of its proper divisors (194084850042).

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

121303031130 is a wasteful number, since it uses less digits than its factorization.

121303031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347811470 (or 1347811467 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 121303031130 its reverse (31130303121), we get a palindrome (152433334251).

The spelling of 121303031130 in words is "one hundred twenty-one billion, three hundred three million, thirty-one thousand, one hundred thirty".