213131035 has 8 divisors (see below), whose sum is σ = 275430960. Its totient is φ = 157389024.

The previous prime is 213131027. The next prime is 213131047. The reversal of 213131035 is 530131312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213131035 - 2³ = 213131027 is a prime.

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, 1639405 + ... + 1639534.

It is an arithmetic number, because the mean of its divisors is an integer number (34428870).

Almost surely, 2^213131035 is an apocalyptic number.

213131035 is a deficient number, since it is larger than the sum of its proper divisors (62299925).

213131035 is a wasteful number, since it uses less digits than its factorization.

213131035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278957.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 213131035 is about 14599.0080142454. The cubic root of 213131035 is about 597.3317021609.

Adding to 213131035 its reverse (530131312), we get a palindrome (743262347).

The spelling of 213131035 in words is "two hundred thirteen million, one hundred thirty-one thousand, thirty-five".