1031201000320 has 64 divisors (see below), whose sum is σ = 2465431363440. Its totient is φ = 412444180480.

The previous prime is 1031201000311. The next prime is 1031201000371. The reversal of 1031201000320 is 230001021301.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1031201000320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7929744 + ... + 8058736.

Almost surely, 2^{1031201000320} is an apocalyptic number.

1031201000320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031201000320 is an abundant number, since it is smaller than the sum of its proper divisors (1434230363120).

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

1031201000320 is a wasteful number, since it uses less digits than its factorization.

1031201000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141503 (or 141491 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1031201000320 its reverse (230001021301), we get a palindrome (1261202021621).

The spelling of 1031201000320 in words is "one trillion, thirty-one billion, two hundred one million, three hundred twenty", and thus it is an aban number.