421120144123 has 16 divisors (see below), whose sum is σ = 482592960000. Its totient is φ = 359975952000.

The previous prime is 421120144117. The next prime is 421120144163. The reversal of 421120144123 is 321441021124.

It is not a de Polignac number, because 421120144123 - 2²¹ = 421118046971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421120144163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14017188 + ... + 14047198.

It is an arithmetic number, because the mean of its divisors is an integer number (30162060000).

Almost surely, 2^421120144123 is an apocalyptic number.

421120144123 is a deficient number, since it is larger than the sum of its proper divisors (61472815877).

421120144123 is a wasteful number, since it uses less digits than its factorization.

421120144123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35418.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 421120144123 its reverse (321441021124), we get a palindrome (742561165247).

The spelling of 421120144123 in words is "four hundred twenty-one billion, one hundred twenty million, one hundred forty-four thousand, one hundred twenty-three".