20023203243431 has 8 divisors (see below), whose sum is σ = 20154946537440. Its totient is φ = 19891851460992.

The previous prime is 20023203243413. The next prime is 20023203243479. The reversal of 20023203243431 is 13434230232002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20023203243431 - 2¹⁰ = 20023203242407 is a prime.

It is a super-2 number, since 2×20023203243431² (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 = 20023203243394 and 20023203243403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023203243031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97775270 + ... + 97979843.

It is an arithmetic number, because the mean of its divisors is an integer number (2519368317180).

Almost surely, 2^{20023203243431} is an apocalyptic number.

20023203243431 is a deficient number, since it is larger than the sum of its proper divisors (131743294009).

20023203243431 is a wasteful number, since it uses less digits than its factorization.

20023203243431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195755785.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 20023203243431 its reverse (13434230232002), we get a palindrome (33457433475433).

The spelling of 20023203243431 in words is "twenty trillion, twenty-three billion, two hundred three million, two hundred forty-three thousand, four hundred thirty-one".