351331113040 has 80 divisors (see below), whose sum is σ = 829717394688. Its totient is φ = 138334169088.

The previous prime is 351331113031. The next prime is 351331113053. The reversal of 351331113040 is 40311133153.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 351331112996 and 351331113014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248424 + ... + 1503736.

Almost surely, 2^351331113040 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 351331113040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414858697344).

351331113040 is an abundant number, since it is smaller than the sum of its proper divisors (478386281648).

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

351331113040 is a wasteful number, since it uses less digits than its factorization.

351331113040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255596 (or 255590 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 351331113040 its reverse (40311133153), we get a palindrome (391642246193).

The spelling of 351331113040 in words is "three hundred fifty-one billion, three hundred thirty-one million, one hundred thirteen thousand, forty".