121432025 has 24 divisors (see below), whose sum is σ = 176905344. Its totient is φ = 81518400.

The previous prime is 121432007. The next prime is 121432033. The reversal of 121432025 is 520234121.

It is not a de Polignac number, because 121432025 - 2²⁶ = 54323161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121431988 and 121432006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13409 + ... + 20558.

It is an arithmetic number, because the mean of its divisors is an integer number (7371056).

Almost surely, 2^121432025 is an apocalyptic number.

It is an amenable number.

121432025 is a deficient number, since it is larger than the sum of its proper divisors (55473319).

121432025 is a wasteful number, since it uses less digits than its factorization.

121432025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34001 (or 33996 counting only the distinct ones).

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

The square root of 121432025 is about 11019.6200025228. The cubic root of 121432025 is about 495.1967044639.

Adding to 121432025 its reverse (520234121), we get a palindrome (641666146).

The spelling of 121432025 in words is "one hundred twenty-one million, four hundred thirty-two thousand, twenty-five".