22423323021031 has 4 divisors (see below), whose sum is σ = 22423370321232. Its totient is φ = 22423275720832.

The previous prime is 22423323021013. The next prime is 22423323021083. The reversal of 22423323021031 is 13012032332422.

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 22423323021031 - 2²⁹ = 22422786150119 is a prime.

It is a super-2 number, since 2×22423323021031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423323021091) 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, 22931731 + ... + 23889556.

It is an arithmetic number, because the mean of its divisors is an integer number (5605842580308).

Almost surely, 2^{22423323021031} is an apocalyptic number.

22423323021031 is a deficient number, since it is larger than the sum of its proper divisors (47300201).

22423323021031 is an equidigital number, since it uses as much as digits as its factorization.

22423323021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47300200.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 22423323021031 its reverse (13012032332422), we get a palindrome (35435355353453).

The spelling of 22423323021031 in words is "twenty-two trillion, four hundred twenty-three billion, three hundred twenty-three million, twenty-one thousand, thirty-one".