342121031 has 4 divisors (see below), whose sum is σ = 390995472. Its totient is φ = 293246592.

The previous prime is 342121027. The next prime is 342121057. The reversal of 342121031 is 130121243.

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 342121031 - 2² = 342121027 is a prime.

It is a super-2 number, since 2×342121031² = 234093599705005922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342121081) 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, 24437210 + ... + 24437223.

It is an arithmetic number, because the mean of its divisors is an integer number (97748868).

Almost surely, 2^342121031 is an apocalyptic number.

342121031 is a deficient number, since it is larger than the sum of its proper divisors (48874441).

342121031 is an equidigital number, since it uses as much as digits as its factorization.

342121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48874440.

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

The square root of 342121031 is about 18496.5140229179. The cubic root of 342121031 is about 699.4015504193.

Adding to 342121031 its reverse (130121243), we get a palindrome (472242274).

The spelling of 342121031 in words is "three hundred forty-two million, one hundred twenty-one thousand, thirty-one".