342213131 has 4 divisors (see below), whose sum is σ = 368537232. Its totient is φ = 315889032.

The previous prime is 342213127. The next prime is 342213133. The reversal of 342213131 is 131312243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 342213131 - 2² = 342213127 is a prime.

It is a super-2 number, since 2×342213131² = 234219654057646322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342213133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13162031 + ... + 13162056.

It is an arithmetic number, because the mean of its divisors is an integer number (92134308).

Almost surely, 2^342213131 is an apocalyptic number.

342213131 is a deficient number, since it is larger than the sum of its proper divisors (26324101).

342213131 is a wasteful number, since it uses less digits than its factorization.

342213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26324100.

The product of its digits is 432, while the sum is 20.

The square root of 342213131 is about 18499.0035137031. The cubic root of 342213131 is about 699.4643051148.

Adding to 342213131 its reverse (131312243), we get a palindrome (473525374).

The spelling of 342213131 in words is "three hundred forty-two million, two hundred thirteen thousand, one hundred thirty-one".