20011321339 has 2 divisors, whose sum is σ = 20011321340. Its totient is φ = 20011321338.

The previous prime is 20011321321. The next prime is 20011321397. The reversal of 20011321339 is 93312311002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20011321339 is a prime.

It is not a weakly prime, because it can be changed into another prime (20011321439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005660669 + 10005660670.

It is an arithmetic number, because the mean of its divisors is an integer number (10005660670).

Almost surely, 2^20011321339 is an apocalyptic number.

20011321339 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011321339 is an equidigital number, since it uses as much as digits as its factorization.

20011321339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 20011321339 in words is "twenty billion, eleven million, three hundred twenty-one thousand, three hundred thirty-nine".