121425024202531 has 12 divisors (see below), whose sum is σ = 141661324144272. Its totient is φ = 104078592159192.

The previous prime is 121425024202451. The next prime is 121425024202673. The reversal of 121425024202531 is 135202420524121.

It is not a de Polignac number, because 121425024202531 - 2¹³ = 121425024194339 is a prime.

It is a super-2 number, since 2×121425024202531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121425024202231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3612318060 + ... + 3612351673.

It is an arithmetic number, because the mean of its divisors is an integer number (11805110345356).

Almost surely, 2^{121425024202531} is an apocalyptic number.

121425024202531 is a deficient number, since it is larger than the sum of its proper divisors (20236299941741).

121425024202531 is an frugal number, since it uses more digits than its factorization.

121425024202531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224669768 (or 7224669740 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 121425024202531 its reverse (135202420524121), we get a palindrome (256627444726652).

The spelling of 121425024202531 in words is "one hundred twenty-one trillion, four hundred twenty-five billion, twenty-four million, two hundred two thousand, five hundred thirty-one".