20122013320 has 16 divisors (see below), whose sum is σ = 45274530060. Its totient is φ = 8048805312.

The previous prime is 20122013299. The next prime is 20122013339. The reversal of 20122013320 is 2331022102.

It can be written as a sum of positive squares in 2 ways, for example, as 19700368164 + 421645156 = 140358^2 + 20534^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20122013294 and 20122013303.

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, 251525127 + ... + 251525206.

Almost surely, 2^20122013320 is an apocalyptic number.

20122013320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122013320 is an abundant number, since it is smaller than the sum of its proper divisors (25152516740).

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

20122013320 is a wasteful number, since it uses less digits than its factorization.

20122013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503050344 (or 503050340 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20122013320 its reverse (2331022102), we get a palindrome (22453035422).

The spelling of 20122013320 in words is "twenty billion, one hundred twenty-two million, thirteen thousand, three hundred twenty".