341423212121 has 4 divisors (see below), whose sum is σ = 342655787172. Its totient is φ = 340190637072.

The previous prime is 341423212099. The next prime is 341423212129. The reversal of 341423212121 is 121212324143.

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 160691946496 + 180731265625 = 400864^2 + 425125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-341423212121 is a prime.

It is a super-2 number, since 2×341423212121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (341423212129) 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, 616287110 + ... + 616287663.

It is an arithmetic number, because the mean of its divisors is an integer number (85663946793).

Almost surely, 2^341423212121 is an apocalyptic number.

It is an amenable number.

341423212121 is a deficient number, since it is larger than the sum of its proper divisors (1232575051).

341423212121 is a wasteful number, since it uses less digits than its factorization.

341423212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232575050.

The product of its digits is 2304, while the sum is 26.

Adding to 341423212121 its reverse (121212324143), we get a palindrome (462635536264).

The spelling of 341423212121 in words is "three hundred forty-one billion, four hundred twenty-three million, two hundred twelve thousand, one hundred twenty-one".