342121351 has 16 divisors (see below), whose sum is σ = 412802208. Its totient is φ = 279331200.

The previous prime is 342121337. The next prime is 342121357. The reversal of 342121351 is 153121243.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 342121351 - 2⁷ = 342121223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342121357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27040 + ... + 37621.

It is an arithmetic number, because the mean of its divisors is an integer number (25800138).

Almost surely, 2^342121351 is an apocalyptic number.

342121351 is a deficient number, since it is larger than the sum of its proper divisors (70680857).

342121351 is a wasteful number, since it uses less digits than its factorization.

342121351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64722.

The product of its digits is 720, while the sum is 22.

The square root of 342121351 is about 18496.5226731945. The cubic root of 342121351 is about 699.4017684790.

Adding to 342121351 its reverse (153121243), we get a palindrome (495242594).

The spelling of 342121351 in words is "three hundred forty-two million, one hundred twenty-one thousand, three hundred fifty-one".