22423013431 has 20 divisors (see below), whose sum is σ = 28170867032. Its totient is φ = 17741260656.

The previous prime is 22423013401. The next prime is 22423013453. The reversal of 22423013431 is 13431032422.

It is not a de Polignac number, because 22423013431 - 2⁵ = 22423013399 is a prime.

It is a super-2 number, since 2×22423013431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22423013396 and 22423013405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423013401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 327981 + ... + 390406.

Almost surely, 2^22423013431 is an apocalyptic number.

22423013431 is a deficient number, since it is larger than the sum of its proper divisors (5747853601).

22423013431 is an frugal number, since it uses more digits than its factorization.

22423013431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718428 (or 718407 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 22423013431 its reverse (13431032422), we get a palindrome (35854045853).

The spelling of 22423013431 in words is "twenty-two billion, four hundred twenty-three million, thirteen thousand, four hundred thirty-one".