121423125 has 40 divisors (see below), whose sum is σ = 208933120. Its totient is φ = 62640000.

The previous prime is 121423111. The next prime is 121423151. The reversal of 121423125 is 521324121.

It is not a de Polignac number, because 121423125 - 2⁷ = 121422997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 57081 + ... + 59169.

It is an arithmetic number, because the mean of its divisors is an integer number (5223328).

Almost surely, 2^121423125 is an apocalyptic number.

121423125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121423125 is a deficient number, since it is larger than the sum of its proper divisors (87509995).

121423125 is an equidigital number, since it uses as much as digits as its factorization.

121423125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143 (or 2128 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 121423125 is about 11019.2161699460. The cubic root of 121423125 is about 495.1846061772.

Adding to 121423125 its reverse (521324121), we get a palindrome (642747246).

The spelling of 121423125 in words is "one hundred twenty-one million, four hundred twenty-three thousand, one hundred twenty-five".