30311013023 has 4 divisors (see below), whose sum is σ = 30349528440. Its totient is φ = 30272497608.

The previous prime is 30311013017. The next prime is 30311013043. The reversal of 30311013023 is 32031011303.

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 30311013023 - 2¹² = 30311008927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30311012992 and 30311013010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311013043) 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, 19256528 + ... + 19258101.

It is an arithmetic number, because the mean of its divisors is an integer number (7587382110).

Almost surely, 2^30311013023 is an apocalyptic number.

30311013023 is a deficient number, since it is larger than the sum of its proper divisors (38515417).

30311013023 is an equidigital number, since it uses as much as digits as its factorization.

30311013023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38515416.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30311013023 its reverse (32031011303), we get a palindrome (62342024326).

The spelling of 30311013023 in words is "thirty billion, three hundred eleven million, thirteen thousand, twenty-three".