121430321432203 has 48 divisors (see below), whose sum is σ = 147876954825600. Its totient is φ = 99339323166720.

The previous prime is 121430321432183. The next prime is 121430321432221. The reversal of 121430321432203 is 302234123034121.

It is not a de Polignac number, because 121430321432203 - 2⁵ = 121430321432171 is a prime.

It is a super-2 number, since 2×121430321432203² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121430321432503) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 13789851 + ... + 20809147.

It is an arithmetic number, because the mean of its divisors is an integer number (3080769892200).

Almost surely, 2^{121430321432203} is an apocalyptic number.

121430321432203 is a deficient number, since it is larger than the sum of its proper divisors (26446633393397).

121430321432203 is a wasteful number, since it uses less digits than its factorization.

121430321432203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7019540 (or 7019533 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 121430321432203 its reverse (302234123034121), we get a palindrome (423664444466324).

The spelling of 121430321432203 in words is "one hundred twenty-one trillion, four hundred thirty billion, three hundred twenty-one million, four hundred thirty-two thousand, two hundred three".