20000001299 has 4 divisors (see below), whose sum is σ = 20003148864. Its totient is φ = 19996853736.

The previous prime is 20000001223. The next prime is 20000001311. The reversal of 20000001299 is 99210000002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99210000002 = 2 ⋅49605000001.

It is a cyclic number.

It is not a de Polignac number, because 20000001299 - 2¹² = 19999997203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000001499) 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, 1564232 + ... + 1576965.

It is an arithmetic number, because the mean of its divisors is an integer number (5000787216).

Almost surely, 2^20000001299 is an apocalyptic number.

20000001299 is a deficient number, since it is larger than the sum of its proper divisors (3147565).

20000001299 is an equidigital number, since it uses as much as digits as its factorization.

20000001299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147564.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 20000001299 in words is "twenty billion, one thousand, two hundred ninety-nine".