20023213200031 has 4 divisors (see below), whose sum is σ = 20023629263064. Its totient is φ = 20022797137000.

The previous prime is 20023213199993. The next prime is 20023213200059. The reversal of 20023213200031 is 13000231232002.

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

It is a cyclic number.

It is not a de Polignac number, because 20023213200031 - 2⁷ = 20023213199903 is a prime.

It is a super-2 number, since 2×20023213200031² (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 = 20023213199981 and 20023213200008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023213200091) 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, 207959320 + ... + 208055581.

It is an arithmetic number, because the mean of its divisors is an integer number (5005907315766).

Almost surely, 2^{20023213200031} is an apocalyptic number.

20023213200031 is a deficient number, since it is larger than the sum of its proper divisors (416063033).

20023213200031 is an equidigital number, since it uses as much as digits as its factorization.

20023213200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416063032.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20023213200031 its reverse (13000231232002), we get a palindrome (33023444432033).

The spelling of 20023213200031 in words is "twenty trillion, twenty-three billion, two hundred thirteen million, two hundred thousand, thirty-one".