30440220311 has 4 divisors (see below), whose sum is σ = 30451369224. Its totient is φ = 30429071400.

The previous prime is 30440220299. The next prime is 30440220323. The reversal of 30440220311 is 11302204403.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (30440220299) and next prime (30440220323).

It is a cyclic number.

It is not a de Polignac number, because 30440220311 - 2¹⁸ = 30439958167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30440220211) 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, 5570360 + ... + 5575821.

It is an arithmetic number, because the mean of its divisors is an integer number (7612842306).

Almost surely, 2^30440220311 is an apocalyptic number.

30440220311 is a deficient number, since it is larger than the sum of its proper divisors (11148913).

30440220311 is a wasteful number, since it uses less digits than its factorization.

30440220311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11148912.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 30440220311 its reverse (11302204403), we get a palindrome (41742424714).

The spelling of 30440220311 in words is "thirty billion, four hundred forty million, two hundred twenty thousand, three hundred eleven".