351021201442 has 8 divisors (see below), whose sum is σ = 526534345836. Its totient is φ = 175509752832.

The previous prime is 351021201409. The next prime is 351021201449. The reversal of 351021201442 is 244102120153.

It can be written as a sum of positive squares in 2 ways, for example, as 318085848081 + 32935353361 = 563991^2 + 181481^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (351021201449) 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, 473538 + ... + 962434.

Almost surely, 2^351021201442 is an apocalyptic number.

351021201442 is a deficient number, since it is larger than the sum of its proper divisors (175513144394).

351021201442 is a wasteful number, since it uses less digits than its factorization.

351021201442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847892.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 351021201442 its reverse (244102120153), we get a palindrome (595123321595).

It can be divided in two parts, 35102 and 1201442, that added together give a square (1236544 = 1112²).

The spelling of 351021201442 in words is "three hundred fifty-one billion, twenty-one million, two hundred one thousand, four hundred forty-two".