213101142 has 16 divisors (see below), whose sum is σ = 426582720. Its totient is φ = 70970312.

The previous prime is 213101123. The next prime is 213101153. The reversal of 213101142 is 241101312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8292 + ... + 22247.

It is an arithmetic number, because the mean of its divisors is an integer number (26661420).

Almost surely, 2^213101142 is an apocalyptic number.

213101142 is an abundant number, since it is smaller than the sum of its proper divisors (213481578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213101142 is a wasteful number, since it uses less digits than its factorization.

213101142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31707.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 213101142 is about 14597.9841759059. The cubic root of 213101142 is about 597.3037743160.

Adding to 213101142 its reverse (241101312), we get a palindrome (454202454).

The spelling of 213101142 in words is "two hundred thirteen million, one hundred one thousand, one hundred forty-two".