30910230681 has 16 divisors (see below), whose sum is σ = 45396848640. Its totient is φ = 18551592720.

The previous prime is 30910230677. The next prime is 30910230713. The reversal of 30910230681 is 18603201903.

It is not a de Polignac number, because 30910230681 - 2² = 30910230677 is a prime.

It is a super-2 number, since 2×30910230681² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (30910230601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4543561 + ... + 4550358.

It is an arithmetic number, because the mean of its divisors is an integer number (2837303040).

Almost surely, 2^30910230681 is an apocalyptic number.

It is an amenable number.

30910230681 is a deficient number, since it is larger than the sum of its proper divisors (14486617959).

30910230681 is a wasteful number, since it uses less digits than its factorization.

30910230681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9094036.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 30910230681 in words is "thirty billion, nine hundred ten million, two hundred thirty thousand, six hundred eighty-one".