30321223023 has 32 divisors (see below), whose sum is σ = 49937660416. Its totient is φ = 15935833728.

The previous prime is 30321223019. The next prime is 30321223063. The reversal of 30321223023 is 32032212303.

It is not a de Polignac number, because 30321223023 - 2² = 30321223019 is a prime.

It is a super-2 number, since 2×30321223023² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321223063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124861 + ... + 276102.

It is an arithmetic number, because the mean of its divisors is an integer number (1560551888).

Almost surely, 2^30321223023 is an apocalyptic number.

30321223023 is a deficient number, since it is larger than the sum of its proper divisors (19616437393).

30321223023 is a wasteful number, since it uses less digits than its factorization.

30321223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401263.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 30321223023 its reverse (32032212303), we get a palindrome (62353435326).

The spelling of 30321223023 in words is "thirty billion, three hundred twenty-one million, two hundred twenty-three thousand, twenty-three".