121525331 has 2 divisors, whose sum is σ = 121525332. Its totient is φ = 121525330.

The previous prime is 121525291. The next prime is 121525373. The reversal of 121525331 is 133525121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121525331 - 2¹⁰ = 121524307 is a prime.

It is a super-2 number, since 2×121525331² = 29536812149319122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121525297 and 121525306.

It is not a weakly prime, because it can be changed into another prime (121525931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60762665 + 60762666.

It is an arithmetic number, because the mean of its divisors is an integer number (60762666).

Almost surely, 2^121525331 is an apocalyptic number.

121525331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121525331 is an equidigital number, since it uses as much as digits as its factorization.

121525331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 23.

The square root of 121525331 is about 11023.8528201351. The cubic root of 121525331 is about 495.3235051561.

The spelling of 121525331 in words is "one hundred twenty-one million, five hundred twenty-five thousand, three hundred thirty-one".