20011002320 has 40 divisors (see below), whose sum is σ = 46562082336. Its totient is φ = 7998121088.

The previous prime is 20011002299. The next prime is 20011002383. The reversal of 20011002320 is 2320011002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5159 + ... + 200121.

Almost surely, 2^20011002320 is an apocalyptic number.

20011002320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011002320 is an abundant number, since it is smaller than the sum of its proper divisors (26551080016).

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

20011002320 is a wasteful number, since it uses less digits than its factorization.

20011002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196259 (or 196253 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20011002320 its reverse (2320011002), we get a palindrome (22331013322).

The spelling of 20011002320 in words is "twenty billion, eleven million, two thousand, three hundred twenty".