20132200031 has 4 divisors (see below), whose sum is σ = 20206488864. Its totient is φ = 20057911200.

The previous prime is 20132200009. The next prime is 20132200051. The reversal of 20132200031 is 13000223102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20132200031 is a prime.

It is a super-2 number, since 2×20132200031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20132199979 and 20132200015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132200051) 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, 37144010 + ... + 37144551.

It is an arithmetic number, because the mean of its divisors is an integer number (5051622216).

Almost surely, 2^20132200031 is an apocalyptic number.

20132200031 is a deficient number, since it is larger than the sum of its proper divisors (74288833).

20132200031 is an equidigital number, since it uses as much as digits as its factorization.

20132200031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74288832.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20132200031 its reverse (13000223102), we get a palindrome (33132423133).

The spelling of 20132200031 in words is "twenty billion, one hundred thirty-two million, two hundred thousand, thirty-one".