121430024121 has 32 divisors (see below), whose sum is σ = 185832972288. Its totient is φ = 69090315840.

The previous prime is 121430024087. The next prime is 121430024123. The reversal of 121430024121 is 121420034121.

It is not a de Polignac number, because 121430024121 - 2⁶ = 121430024057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (121430024123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6054516 + ... + 6074538.

It is an arithmetic number, because the mean of its divisors is an integer number (5807280384).

Almost surely, 2^121430024121 is an apocalyptic number.

It is an amenable number.

121430024121 is a deficient number, since it is larger than the sum of its proper divisors (64402948167).

121430024121 is a wasteful number, since it uses less digits than its factorization.

121430024121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21261.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121430024121 its reverse (121420034121), we get a palindrome (242850058242).

The spelling of 121430024121 in words is "one hundred twenty-one billion, four hundred thirty million, twenty-four thousand, one hundred twenty-one".