342120131 has 4 divisors (see below), whose sum is σ = 343421232. Its totient is φ = 340819032.

The previous prime is 342120127. The next prime is 342120143. The reversal of 342120131 is 131021243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131021243 = 1283 ⋅102121.

It is a cyclic number.

It is not a de Polignac number, because 342120131 - 2² = 342120127 is a prime.

It is a super-2 number, since 2×342120131² = 234092368070914322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342128131) 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 3 ways as a sum of consecutive naturals, for example, 650156 + ... + 650681.

It is an arithmetic number, because the mean of its divisors is an integer number (85855308).

Almost surely, 2^342120131 is an apocalyptic number.

342120131 is a deficient number, since it is larger than the sum of its proper divisors (1301101).

342120131 is a wasteful number, since it uses less digits than its factorization.

342120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301100.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 342120131 is about 18496.4896939933. The cubic root of 342120131 is about 699.4009371256.

Adding to 342120131 its reverse (131021243), we get a palindrome (473141374).

The spelling of 342120131 in words is "three hundred forty-two million, one hundred twenty thousand, one hundred thirty-one".