20020010999 has 4 divisors (see below), whose sum is σ = 20020404480. Its totient is φ = 20019617520.

The previous prime is 20020010963. The next prime is 20020011043. The reversal of 20020010999 is 99901002002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20020010999 - 2⁸ = 20020010743 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 (20020010929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106679 + ... + 226760.

It is an arithmetic number, because the mean of its divisors is an integer number (5005101120).

Almost surely, 2^20020010999 is an apocalyptic number.

20020010999 is a deficient number, since it is larger than the sum of its proper divisors (393481).

20020010999 is an equidigital number, since it uses as much as digits as its factorization.

20020010999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393480.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 20020010999 in words is "twenty billion, twenty million, ten thousand, nine hundred ninety-nine".