20313322023220 has 12 divisors (see below), whose sum is σ = 42657976248804. Its totient is φ = 8125328809280.

The previous prime is 20313322023157. The next prime is 20313322023257. The reversal of 20313322023220 is 2232022331302.

It can be written as a sum of positive squares in 2 ways, for example, as 14658086073744 + 5655235949476 = 3828588^2 + 2378074^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507833050561 + ... + 507833050600.

It is an arithmetic number, because the mean of its divisors is an integer number (3554831354067).

Almost surely, 2^{20313322023220} is an apocalyptic number.

20313322023220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313322023220 is an abundant number, since it is smaller than the sum of its proper divisors (22344654225584).

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

20313322023220 is a wasteful number, since it uses less digits than its factorization.

20313322023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015666101170 (or 1015666101168 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 20313322023220 its reverse (2232022331302), we get a palindrome (22545344354522).

The spelling of 20313322023220 in words is "twenty trillion, three hundred thirteen billion, three hundred twenty-two million, twenty-three thousand, two hundred twenty".