20323202031 has 24 divisors (see below), whose sum is σ = 32098809600. Its totient is φ = 12288488400.

The previous prime is 20323201967. The next prime is 20323202033. The reversal of 20323202031 is 13020232302.

It is a happy number.

It is not a de Polignac number, because 20323202031 - 2⁶ = 20323201967 is a prime.

It is a super-2 number, since 2×20323202031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20323201995 and 20323202013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323202033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195481 + ... + 280818.

It is an arithmetic number, because the mean of its divisors is an integer number (1337450400).

Almost surely, 2^20323202031 is an apocalyptic number.

20323202031 is a deficient number, since it is larger than the sum of its proper divisors (11775607569).

20323202031 is a wasteful number, since it uses less digits than its factorization.

20323202031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476747 (or 476744 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20323202031 its reverse (13020232302), we get a palindrome (33343434333).

The spelling of 20323202031 in words is "twenty billion, three hundred twenty-three million, two hundred two thousand, thirty-one".