202142311 has 24 divisors (see below), whose sum is σ = 245790720. Its totient is φ = 162822096.

The previous prime is 202142299. The next prime is 202142323. The reversal of 202142311 is 113241202.

It is an interprime number because it is at equal distance from previous prime (202142299) and next prime (202142323).

It is not a de Polignac number, because 202142311 - 2⁹ = 202141799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202142411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 421770 + ... + 422248.

It is an arithmetic number, because the mean of its divisors is an integer number (10241280).

Almost surely, 2^202142311 is an apocalyptic number.

202142311 is a deficient number, since it is larger than the sum of its proper divisors (43648409).

202142311 is a wasteful number, since it uses less digits than its factorization.

202142311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 202142311 is about 14217.6760055925. The cubic root of 202142311 is about 586.8841880555.

Adding to 202142311 its reverse (113241202), we get a palindrome (315383513).

The spelling of 202142311 in words is "two hundred two million, one hundred forty-two thousand, three hundred eleven".