30511085313 has 4 divisors (see below), whose sum is σ = 40681447088. Its totient is φ = 20340723540.

The previous prime is 30511085309. The next prime is 30511085317. The reversal of 30511085313 is 31358011503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (30511085309) and next prime (30511085317).

It is not a de Polignac number, because 30511085313 - 2² = 30511085309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30511085317) 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, 5085180883 + ... + 5085180888.

It is an arithmetic number, because the mean of its divisors is an integer number (10170361772).

Almost surely, 2^30511085313 is an apocalyptic number.

It is an amenable number.

30511085313 is a deficient number, since it is larger than the sum of its proper divisors (10170361775).

30511085313 is a wasteful number, since it uses less digits than its factorization.

30511085313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10170361774.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 30511085313 its reverse (31358011503), we get a palindrome (61869096816).

The spelling of 30511085313 in words is "thirty billion, five hundred eleven million, eighty-five thousand, three hundred thirteen".