421200013344123 has 48 divisors (see below), whose sum is σ = 624212057916000. Its totient is φ = 252426560256000.

The previous prime is 421200013344049. The next prime is 421200013344199. The reversal of 421200013344123 is 321443310002124.

It is not a de Polignac number, because 421200013344123 - 2¹⁰ = 421200013343099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421200013344623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64297998 + ... + 70545251.

It is an arithmetic number, because the mean of its divisors is an integer number (13004417873250).

Almost surely, 2^{421200013344123} is an apocalyptic number.

421200013344123 is a deficient number, since it is larger than the sum of its proper divisors (203012044571877).

421200013344123 is a wasteful number, since it uses less digits than its factorization.

421200013344123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134843440 (or 134843427 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 421200013344123 its reverse (321443310002124), we get a palindrome (742643323346247).

The spelling of 421200013344123 in words is "four hundred twenty-one trillion, two hundred billion, thirteen million, three hundred forty-four thousand, one hundred twenty-three".