121525402150231 has 2 divisors, whose sum is σ = 121525402150232. Its totient is φ = 121525402150230.

The previous prime is 121525402150223. The next prime is 121525402150367. The reversal of 121525402150231 is 132051204525121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121525402150231 - 2³ = 121525402150223 is a prime.

It is a super-2 number, since 2×121525402150231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121525402750231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60762701075115 + 60762701075116.

It is an arithmetic number, because the mean of its divisors is an integer number (60762701075116).

Almost surely, 2^{121525402150231} is an apocalyptic number.

121525402150231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121525402150231 is an equidigital number, since it uses as much as digits as its factorization.

121525402150231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 121525402150231 its reverse (132051204525121), we get a palindrome (253576606675352).

The spelling of 121525402150231 in words is "one hundred twenty-one trillion, five hundred twenty-five billion, four hundred two million, one hundred fifty thousand, two hundred thirty-one".