20312011101 has 16 divisors (see below), whose sum is σ = 27818783424. Its totient is φ = 13173398784.

The previous prime is 20312011079. The next prime is 20312011141. The reversal of 20312011101 is 10111021302.

It is not a de Polignac number, because 20312011101 - 2⁶ = 20312011037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312011141) 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, 1336990 + ... + 1352096.

It is an arithmetic number, because the mean of its divisors is an integer number (1738673964).

Almost surely, 2^20312011101 is an apocalyptic number.

It is an amenable number.

20312011101 is a deficient number, since it is larger than the sum of its proper divisors (7506772323).

20312011101 is a wasteful number, since it uses less digits than its factorization.

20312011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27260.

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

Adding to 20312011101 its reverse (10111021302), we get a palindrome (30423032403).

It can be divided in two parts, 2031201 and 1101, that added together give a palindrome (2032302).

The spelling of 20312011101 in words is "twenty billion, three hundred twelve million, eleven thousand, one hundred one".