342132121 has 4 divisors (see below), whose sum is σ = 342184500. Its totient is φ = 342079744.

The previous prime is 342132101. The next prime is 342132127. The reversal of 342132121 is 121231243.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 122766400 + 219365721 = 11080^2 + 14811^2 .

It is a cyclic number.

It is not a de Polignac number, because 342132121 - 2⁹ = 342131609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342132127) 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, 14716 + ... + 30013.

It is an arithmetic number, because the mean of its divisors is an integer number (85546125).

Almost surely, 2^342132121 is an apocalyptic number.

It is an amenable number.

342132121 is a deficient number, since it is larger than the sum of its proper divisors (52379).

342132121 is an equidigital number, since it uses as much as digits as its factorization.

342132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52378.

The product of its digits is 288, while the sum is 19.

The square root of 342132121 is about 18496.8138067074. The cubic root of 342132121 is about 699.4091074714.

Adding to 342132121 its reverse (121231243), we get a palindrome (463363364).

The spelling of 342132121 in words is "three hundred forty-two million, one hundred thirty-two thousand, one hundred twenty-one".