421113322123 has 4 divisors (see below), whose sum is σ = 453506654608. Its totient is φ = 388719989640.

The previous prime is 421113322093. The next prime is 421113322141. The reversal of 421113322123 is 321223311124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421113322123 is a prime.

It is a super-2 number, since 2×421113322123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421113322153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16196666223 + ... + 16196666248.

It is an arithmetic number, because the mean of its divisors is an integer number (113376663652).

Almost surely, 2^421113322123 is an apocalyptic number.

421113322123 is a deficient number, since it is larger than the sum of its proper divisors (32393332485).

421113322123 is a wasteful number, since it uses less digits than its factorization.

421113322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32393332484.

The product of its digits is 1728, while the sum is 25.

Adding to 421113322123 its reverse (321223311124), we get a palindrome (742336633247).

The spelling of 421113322123 in words is "four hundred twenty-one billion, one hundred thirteen million, three hundred twenty-two thousand, one hundred twenty-three".