121423425115 has 16 divisors (see below), whose sum is σ = 154866067200. Its totient is φ = 91132709472.

The previous prime is 121423425107. The next prime is 121423425131. The reversal of 121423425115 is 511524324121.

It is a cyclic number.

It is not a de Polignac number, because 121423425115 - 2³ = 121423425107 is a prime.

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, 6194785 + ... + 6214354.

It is an arithmetic number, because the mean of its divisors is an integer number (9679129200).

Almost surely, 2^121423425115 is an apocalyptic number.

121423425115 is a deficient number, since it is larger than the sum of its proper divisors (33442642085).

121423425115 is a wasteful number, since it uses less digits than its factorization.

121423425115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12409266.

The product of its digits is 9600, while the sum is 31.

Adding to 121423425115 its reverse (511524324121), we get a palindrome (632947749236).

The spelling of 121423425115 in words is "one hundred twenty-one billion, four hundred twenty-three million, four hundred twenty-five thousand, one hundred fifteen".