30220311231023 has 4 divisors (see below), whose sum is σ = 30220324199208. Its totient is φ = 30220298262840.

The previous prime is 30220311230953. The next prime is 30220311231029. The reversal of 30220311231023 is 32013211302203.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30220311231023 - 2¹² = 30220311226927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30220311231023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220311231029) 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, 1915673 + ... + 8006898.

It is an arithmetic number, because the mean of its divisors is an integer number (7555081049802).

Almost surely, 2^{30220311231023} is an apocalyptic number.

30220311231023 is a deficient number, since it is larger than the sum of its proper divisors (12968185).

30220311231023 is an equidigital number, since it uses as much as digits as its factorization.

30220311231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12968184.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30220311231023 its reverse (32013211302203), we get a palindrome (62233522533226).

The spelling of 30220311231023 in words is "thirty trillion, two hundred twenty billion, three hundred eleven million, two hundred thirty-one thousand, twenty-three".