351702020331 has 24 divisors (see below), whose sum is σ = 554557232320. Its totient is φ = 222127588872.

The previous prime is 351702020297. The next prime is 351702020399. The reversal of 351702020331 is 133020207153.

It is not a de Polignac number, because 351702020331 - 2¹⁰ = 351702019307 is a prime.

It is a super-2 number, since 2×351702020331² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351702020295 and 351702020304.

It is not an unprimeable number, because it can be changed into a prime (351702020731) 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, 38083105 + ... + 38092338.

Almost surely, 2^351702020331 is an apocalyptic number.

351702020331 is a deficient number, since it is larger than the sum of its proper divisors (202855211989).

351702020331 is an equidigital number, since it uses as much as digits as its factorization.

351702020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76175477 (or 76175465 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

Adding to 351702020331 its reverse (133020207153), we get a palindrome (484722227484).

The spelling of 351702020331 in words is "three hundred fifty-one billion, seven hundred two million, twenty thousand, three hundred thirty-one".