20312255710320 has 160 divisors (see below), whose sum is σ = 72336288847872. Its totient is φ = 4618745266176.

The previous prime is 20312255710297. The next prime is 20312255710333. The reversal of 20312255710320 is 2301755221302.

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, 30998632 + ... + 31647111.

Almost surely, 2^{20312255710320} is an apocalyptic number.

20312255710320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312255710320 is an abundant number, since it is smaller than the sum of its proper divisors (52024033137552).

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

20312255710320 is a wasteful number, since it uses less digits than its factorization.

20312255710320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62645959 (or 62645953 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 20312255710320 in words is "twenty trillion, three hundred twelve billion, two hundred fifty-five million, seven hundred ten thousand, three hundred twenty".