22031342423 has 8 divisors (see below), whose sum is σ = 23339872080. Its totient is φ = 20724209280.

The previous prime is 22031342407. The next prime is 22031342447. The reversal of 22031342423 is 32424313022.

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 22031342423 - 2⁴ = 22031342407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22031342392 and 22031342401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031342323) 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, 316553 + ... + 379826.

It is an arithmetic number, because the mean of its divisors is an integer number (2917484010).

Almost surely, 2^22031342423 is an apocalyptic number.

22031342423 is a deficient number, since it is larger than the sum of its proper divisors (1308529657).

22031342423 is a wasteful number, since it uses less digits than its factorization.

22031342423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698257.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 22031342423 its reverse (32424313022), we get a palindrome (54455655445).

The spelling of 22031342423 in words is "twenty-two billion, thirty-one million, three hundred forty-two thousand, four hundred twenty-three".