20311020201 has 16 divisors (see below), whose sum is σ = 27728623296. Its totient is φ = 13217445696.

The previous prime is 20311020179. The next prime is 20311020229. The reversal of 20311020201 is 10202011302.

It is not a de Polignac number, because 20311020201 - 2⁶ = 20311020137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20311020701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159271 + ... + 256883.

It is an arithmetic number, because the mean of its divisors is an integer number (1733038956).

Almost surely, 2^20311020201 is an apocalyptic number.

It is an amenable number.

20311020201 is a deficient number, since it is larger than the sum of its proper divisors (7417603095).

20311020201 is a wasteful number, since it uses less digits than its factorization.

20311020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99272.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20311020201 its reverse (10202011302), we get a palindrome (30513031503).

The spelling of 20311020201 in words is "twenty billion, three hundred eleven million, twenty thousand, two hundred one".