348375830021 has 2 divisors, whose sum is σ = 348375830022. Its totient is φ = 348375830020.

The previous prime is 348375830017. The next prime is 348375830071. The reversal of 348375830021 is 120038573843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180510268225 + 167865561796 = 424865^2 + 409714^2 .

It is a cyclic number.

It is not a de Polignac number, because 348375830021 - 2² = 348375830017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348375830071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174187915010 + 174187915011.

It is an arithmetic number, because the mean of its divisors is an integer number (174187915011).

Almost surely, 2^348375830021 is an apocalyptic number.

It is an amenable number.

348375830021 is a deficient number, since it is larger than the sum of its proper divisors (1).

348375830021 is an equidigital number, since it uses as much as digits as its factorization.

348375830021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 348375830021 in words is "three hundred forty-eight billion, three hundred seventy-five million, eight hundred thirty thousand, twenty-one".