20210023232031 has 4 divisors (see below), whose sum is σ = 26946697642712. Its totient is φ = 13473348821352.

The previous prime is 20210023231999. The next prime is 20210023232129. The reversal of 20210023232031 is 13023232001202.

It is a happy number.

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

It is not a de Polignac number, because 20210023232031 - 2⁵ = 20210023231999 is a prime.

It is a super-2 number, since 2×20210023232031² (a number of 27 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 = 20210023231989 and 20210023232007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210023236031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368337205336 + ... + 3368337205341.

It is an arithmetic number, because the mean of its divisors is an integer number (6736674410678).

Almost surely, 2^{20210023232031} is an apocalyptic number.

20210023232031 is a deficient number, since it is larger than the sum of its proper divisors (6736674410681).

20210023232031 is an equidigital number, since it uses as much as digits as its factorization.

20210023232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736674410680.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20210023232031 its reverse (13023232001202), we get a palindrome (33233255233233).

The spelling of 20210023232031 in words is "twenty trillion, two hundred ten billion, twenty-three million, two hundred thirty-two thousand, thirty-one".