121313130 has 16 divisors (see below), whose sum is σ = 291151584. Its totient is φ = 32350160.

The previous prime is 121313123. The next prime is 121313149. The reversal of 121313130 is 31313121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2021856 + ... + 2021915.

It is an arithmetic number, because the mean of its divisors is an integer number (18196974).

Almost surely, 2^121313130 is an apocalyptic number.

121313130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121313130 is an abundant number, since it is smaller than the sum of its proper divisors (169838454).

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

121313130 is a wasteful number, since it uses less digits than its factorization.

121313130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043781.

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

The square root of 121313130 is about 11014.2239853745. The cubic root of 121313130 is about 495.0350347614.

Adding to 121313130 its reverse (31313121), we get a palindrome (152626251).

Subtracting from 121313130 its reverse (31313121), we obtain a palindrome (90000009).

The spelling of 121313130 in words is "one hundred twenty-one million, three hundred thirteen thousand, one hundred thirty".