121325420 has 12 divisors (see below), whose sum is σ = 254783424. Its totient is φ = 48530160.

The previous prime is 121325389. The next prime is 121325443. The reversal of 121325420 is 24523121.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6066271 = 121325420 / (1 + 2 + 1 + 3 + 2 + 5 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 121325392 and 121325401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3033116 + ... + 3033155.

It is an arithmetic number, because the mean of its divisors is an integer number (21231952).

Almost surely, 2^121325420 is an apocalyptic number.

121325420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121325420 is an abundant number, since it is smaller than the sum of its proper divisors (133458004).

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

121325420 is a wasteful number, since it uses less digits than its factorization.

121325420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6066280 (or 6066278 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 121325420 is about 11014.7818861746. The cubic root of 121325420 is about 495.0517512128.

Adding to 121325420 its reverse (24523121), we get a palindrome (145848541).

The spelling of 121325420 in words is "one hundred twenty-one million, three hundred twenty-five thousand, four hundred twenty".