313254401520 has 80 divisors (see below), whose sum is σ = 974022694272. Its totient is φ = 83282115840.

The previous prime is 313254401491. The next prime is 313254401539. The reversal of 313254401520 is 25104452313.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1892202 + ... + 2051081.

Almost surely, 2^313254401520 is an apocalyptic number.

313254401520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313254401520 is an abundant number, since it is smaller than the sum of its proper divisors (660768292752).

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

313254401520 is a wasteful number, since it uses less digits than its factorization.

313254401520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943630 (or 3943624 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 313254401520 its reverse (25104452313), we get a palindrome (338358853833).

The spelling of 313254401520 in words is "three hundred thirteen billion, two hundred fifty-four million, four hundred one thousand, five hundred twenty".