421107615123 has 16 divisors (see below), whose sum is σ = 604683389856. Its totient is φ = 259136271360.

The previous prime is 421107615121. The next prime is 421107615157. The reversal of 421107615123 is 321516701124.

It is not a de Polignac number, because 421107615123 - 2¹ = 421107615121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421107615121) 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, 1620061 + ... + 1861937.

It is an arithmetic number, because the mean of its divisors is an integer number (37792711866).

Almost surely, 2^421107615123 is an apocalyptic number.

421107615123 is a deficient number, since it is larger than the sum of its proper divisors (183575774733).

421107615123 is a wasteful number, since it uses less digits than its factorization.

421107615123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286534.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 421107615123 in words is "four hundred twenty-one billion, one hundred seven million, six hundred fifteen thousand, one hundred twenty-three".