213112042 has 72 divisors (see below), whose sum is σ = 399074688. Its totient is φ = 84520800.

The previous prime is 213112027. The next prime is 213112049. The reversal of 213112042 is 240211312.

It is not an unprimeable number, because it can be changed into a prime (213112049) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4956073 + ... + 4956115.

It is an arithmetic number, because the mean of its divisors is an integer number (5542704).

Almost surely, 2^213112042 is an apocalyptic number.

213112042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213112042 is a deficient number, since it is larger than the sum of its proper divisors (185962646).

213112042 is a wasteful number, since it uses less digits than its factorization.

213112042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 100 counting only the distinct ones).

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

The square root of 213112042 is about 14598.3575103503. The cubic root of 213112042 is about 597.3139580564.

Adding to 213112042 its reverse (240211312), we get a palindrome (453323354).

The spelling of 213112042 in words is "two hundred thirteen million, one hundred twelve thousand, forty-two".