121323130 has 16 divisors (see below), whose sum is σ = 218630664. Its totient is φ = 48473920.

The previous prime is 121323107. The next prime is 121323143. The reversal of 121323130 is 31323121.

It can be written as a sum of positive squares in 4 ways, for example, as 106936281 + 14386849 = 10341^2 + 3793^2 .

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, 2964 + ... + 15856.

Almost surely, 2^121323130 is an apocalyptic number.

121323130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121323130 is a deficient number, since it is larger than the sum of its proper divisors (97307534).

121323130 is a wasteful number, since it uses less digits than its factorization.

121323130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13841.

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

The square root of 121323130 is about 11014.6779344654. The cubic root of 121323130 is about 495.0486365161.

Adding to 121323130 its reverse (31323121), we get a palindrome (152646251).

Subtracting from 121323130 its reverse (31323121), we obtain a palindrome (90000009).

The spelling of 121323130 in words is "one hundred twenty-one million, three hundred twenty-three thousand, one hundred thirty".