20233442210431 has 4 divisors (see below), whose sum is σ = 20240802505000. Its totient is φ = 20226081915864.

The previous prime is 20233442210419. The next prime is 20233442210467. The reversal of 20233442210431 is 13401224433202.

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 20233442210431 - 2⁹ = 20233442209919 is a prime.

It is a super-2 number, since 2×20233442210431² (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 = 20233442210393 and 20233442210402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233445210431) 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, 3680143161 + ... + 3680148658.

It is an arithmetic number, because the mean of its divisors is an integer number (5060200626250).

Almost surely, 2^{20233442210431} is an apocalyptic number.

20233442210431 is a deficient number, since it is larger than the sum of its proper divisors (7360294569).

20233442210431 is an equidigital number, since it uses as much as digits as its factorization.

20233442210431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7360294568.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 20233442210431 its reverse (13401224433202), we get a palindrome (33634666643633).

The spelling of 20233442210431 in words is "twenty trillion, two hundred thirty-three billion, four hundred forty-two million, two hundred ten thousand, four hundred thirty-one".