121413031543425 has 24 divisors (see below), whose sum is σ = 202180357580320. Its totient is φ = 64287763459200.

The previous prime is 121413031543387. The next prime is 121413031543481. The reversal of 121413031543425 is 524345130314121.

It is not a de Polignac number, because 121413031543425 - 2²¹ = 121413029446273 is a prime.

It is a super-2 number, since 2×121413031543425² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5823156556 + ... + 5823177405.

Almost surely, 2^{121413031543425} is an apocalyptic number.

121413031543425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121413031543425 is a deficient number, since it is larger than the sum of its proper divisors (80767326036895).

121413031543425 is a wasteful number, since it uses less digits than its factorization.

121413031543425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11646334113 (or 11646334108 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 121413031543425 its reverse (524345130314121), we get a palindrome (645758161857546).

The spelling of 121413031543425 in words is "one hundred twenty-one trillion, four hundred thirteen billion, thirty-one million, five hundred forty-three thousand, four hundred twenty-five".