121130031030 has 32 divisors (see below), whose sum is σ = 290856780288. Its totient is φ = 32285263200.

The previous prime is 121130031023. The next prime is 121130031053. The reversal of 121130031030 is 30130031121.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 943566 + ... + 1064225.

It is an arithmetic number, because the mean of its divisors is an integer number (9089274384).

Almost surely, 2^121130031030 is an apocalyptic number.

121130031030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121130031030 is an abundant number, since it is smaller than the sum of its proper divisors (169726749258).

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

121130031030 is a wasteful number, since it uses less digits than its factorization.

121130031030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009812.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 121130031030 its reverse (30130031121), we get a palindrome (151260062151).

Subtracting from 121130031030 its reverse (30130031121), we obtain a palindrome (90999999909).

The spelling of 121130031030 in words is "one hundred twenty-one billion, one hundred thirty million, thirty-one thousand, thirty".