420213522123353 has 24 divisors (see below), whose sum is σ = 512545290416640. Its totient is φ = 337392017582400.

The previous prime is 420213522123259. The next prime is 420213522123407. The reversal of 420213522123353 is 353321225312024.

It is a de Polignac number, because none of the positive numbers 2^k-420213522123353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420213522123253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 933985673 + ... + 934435478.

It is an arithmetic number, because the mean of its divisors is an integer number (21356053767360).

Almost surely, 2^{420213522123353} is an apocalyptic number.

It is an amenable number.

420213522123353 is a deficient number, since it is larger than the sum of its proper divisors (92331768293287).

420213522123353 is a wasteful number, since it uses less digits than its factorization.

420213522123353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868421285 (or 1868421266 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 420213522123353 its reverse (353321225312024), we get a palindrome (773534747435377).

The spelling of 420213522123353 in words is "four hundred twenty trillion, two hundred thirteen billion, five hundred twenty-two million, one hundred twenty-three thousand, three hundred fifty-three".