30223131023 has 4 divisors (see below), whose sum is σ = 31039972440. Its totient is φ = 29406289608.

The previous prime is 30223131019. The next prime is 30223131049. The reversal of 30223131023 is 32013132203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32013132203 = 13 ⋅2462548631.

It is not a de Polignac number, because 30223131023 - 2² = 30223131019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30223130986 and 30223131004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30223431023) 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, 408420653 + ... + 408420726.

It is an arithmetic number, because the mean of its divisors is an integer number (7759993110).

Almost surely, 2^30223131023 is an apocalyptic number.

30223131023 is a deficient number, since it is larger than the sum of its proper divisors (816841417).

30223131023 is an equidigital number, since it uses as much as digits as its factorization.

30223131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816841416.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30223131023 its reverse (32013132203), we get a palindrome (62236263226).

The spelling of 30223131023 in words is "thirty billion, two hundred twenty-three million, one hundred thirty-one thousand, twenty-three".