423211143 has 16 divisors (see below), whose sum is σ = 593673696. Its totient is φ = 267816960.

The previous prime is 423211133. The next prime is 423211147. The reversal of 423211143 is 341112324.

It is not a de Polignac number, because 423211143 - 2⁶ = 423211079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423211147) 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, 41946 + ... + 51047.

It is an arithmetic number, because the mean of its divisors is an integer number (37104606).

Almost surely, 2^423211143 is an apocalyptic number.

423211143 is a deficient number, since it is larger than the sum of its proper divisors (170462553).

423211143 is a wasteful number, since it uses less digits than its factorization.

423211143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93074.

The product of its digits is 576, while the sum is 21.

The square root of 423211143 is about 20572.0962227965. The cubic root of 423211143 is about 750.7909540069.

Adding to 423211143 its reverse (341112324), we get a palindrome (764323467).

The spelling of 423211143 in words is "four hundred twenty-three million, two hundred eleven thousand, one hundred forty-three".