421167123 has 12 divisors (see below), whose sum is σ = 655149040. Its totient is φ = 259179696.

The previous prime is 421167107. The next prime is 421167199. The reversal of 421167123 is 321761124.

It is not a de Polignac number, because 421167123 - 2⁴ = 421167107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421167223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1799743 + ... + 1799976.

Almost surely, 2^421167123 is an apocalyptic number.

421167123 is a deficient number, since it is larger than the sum of its proper divisors (233981917).

421167123 is a wasteful number, since it uses less digits than its factorization.

421167123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599738 (or 3599735 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 421167123 is about 20522.3566629176. The cubic root of 421167123 is about 749.5802824934.

The spelling of 421167123 in words is "four hundred twenty-one million, one hundred sixty-seven thousand, one hundred twenty-three".