345202233421 has 4 divisors (see below), whose sum is σ = 345215708352. Its totient is φ = 345188758492.

The previous prime is 345202233391. The next prime is 345202233433. The reversal of 345202233421 is 124332202543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 345202233421 - 2¹⁵ = 345202200653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345202233451) 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, 6698965 + ... + 6750298.

It is an arithmetic number, because the mean of its divisors is an integer number (86303927088).

Almost surely, 2^345202233421 is an apocalyptic number.

It is an amenable number.

345202233421 is a deficient number, since it is larger than the sum of its proper divisors (13474931).

345202233421 is a wasteful number, since it uses less digits than its factorization.

345202233421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13474930.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 345202233421 its reverse (124332202543), we get a palindrome (469534435964).

The spelling of 345202233421 in words is "three hundred forty-five billion, two hundred two million, two hundred thirty-three thousand, four hundred twenty-one".