20320011373 has 8 divisors (see below), whose sum is σ = 20738352888. Its totient is φ = 19902964224.

The previous prime is 20320011367. The next prime is 20320011391. The reversal of 20320011373 is 37311002302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13330549764 + 6989461609 = 115458^2 + 83603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20320011373 - 2³³ = 11730076781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320012373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291840 + ... + 354697.

It is an arithmetic number, because the mean of its divisors is an integer number (2592294111).

Almost surely, 2^20320011373 is an apocalyptic number.

It is an amenable number.

20320011373 is a deficient number, since it is larger than the sum of its proper divisors (418341515).

20320011373 is an equidigital number, since it uses as much as digits as its factorization.

20320011373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647183.

The product of its (nonzero) digits is 756, while the sum is 22.

Adding to 20320011373 its reverse (37311002302), we get a palindrome (57631013675).

The spelling of 20320011373 in words is "twenty billion, three hundred twenty million, eleven thousand, three hundred seventy-three".