351320142140 has 96 divisors (see below), whose sum is σ = 834534005760. Its totient is φ = 123060358400.

The previous prime is 351320142139. The next prime is 351320142157. The reversal of 351320142140 is 41241023153.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2685899 + ... + 2813661.

It is an arithmetic number, because the mean of its divisors is an integer number (8693062560).

Almost surely, 2^351320142140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 351320142140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417267002880).

351320142140 is an abundant number, since it is smaller than the sum of its proper divisors (483213863620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

351320142140 is a wasteful number, since it uses less digits than its factorization.

351320142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128243 (or 128241 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 351320142140 its reverse (41241023153), we get a palindrome (392561165293).

The spelling of 351320142140 in words is "three hundred fifty-one billion, three hundred twenty million, one hundred forty-two thousand, one hundred forty".