20112311302320 has 80 divisors (see below), whose sum is σ = 62351796229632. Its totient is φ = 5362970653440.

The previous prime is 20112311302277. The next prime is 20112311302367. The reversal of 20112311302320 is 2320311321102.

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

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, 1703739 + ... + 6567141.

Almost surely, 2^{20112311302320} is an apocalyptic number.

20112311302320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112311302320 is an abundant number, since it is smaller than the sum of its proper divisors (42239484927312).

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

20112311302320 is a wasteful number, since it uses less digits than its factorization.

20112311302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880650 (or 4880644 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20112311302320 its reverse (2320311321102), we get a palindrome (22432622623422).

The spelling of 20112311302320 in words is "twenty trillion, one hundred twelve billion, three hundred eleven million, three hundred two thousand, three hundred twenty".