352230170021 has 2 divisors, whose sum is σ = 352230170022. Its totient is φ = 352230170020.

The previous prime is 352230170009. The next prime is 352230170053. The reversal of 352230170021 is 120071032253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231794102500 + 120436067521 = 481450^2 + 347039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-352230170021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352230178021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176115085010 + 176115085011.

It is an arithmetic number, because the mean of its divisors is an integer number (176115085011).

Almost surely, 2^352230170021 is an apocalyptic number.

It is an amenable number.

352230170021 is a deficient number, since it is larger than the sum of its proper divisors (1).

352230170021 is an equidigital number, since it uses as much as digits as its factorization.

352230170021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The spelling of 352230170021 in words is "three hundred fifty-two billion, two hundred thirty million, one hundred seventy thousand, twenty-one".