121323115425 has 24 divisors (see below), whose sum is σ = 200598564640. Its totient is φ = 64702108800.

The previous prime is 121323115423. The next prime is 121323115447. The reversal of 121323115425 is 524511323121.

It is a happy number.

It is not a de Polignac number, because 121323115425 - 2¹ = 121323115423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121323115392 and 121323115401.

It is not an unprimeable number, because it can be changed into a prime (121323115423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1886805 + ... + 1950045.

Almost surely, 2^121323115425 is an apocalyptic number.

121323115425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121323115425 is a deficient number, since it is larger than the sum of its proper divisors (79275449215).

121323115425 is a wasteful number, since it uses less digits than its factorization.

121323115425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88833 (or 88828 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 121323115425 its reverse (524511323121), we get a palindrome (645834438546).

The spelling of 121323115425 in words is "one hundred twenty-one billion, three hundred twenty-three million, one hundred fifteen thousand, four hundred twenty-five".