30963098861 has 4 divisors (see below), whose sum is σ = 30983089500. Its totient is φ = 30943108224.

The previous prime is 30963098851. The next prime is 30963098867. The reversal of 30963098861 is 16889036903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16889036903 = 17 ⋅993472759.

It can be written as a sum of positive squares in 2 ways, for example, as 12411296836 + 18551802025 = 111406^2 + 136205^2 .

It is a cyclic number.

It is not a de Polignac number, because 30963098861 - 2⁶ = 30963098797 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 (30963098867) 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, 9992996 + ... + 9996093.

It is an arithmetic number, because the mean of its divisors is an integer number (7745772375).

Almost surely, 2^30963098861 is an apocalyptic number.

It is an amenable number.

30963098861 is a deficient number, since it is larger than the sum of its proper divisors (19990639).

30963098861 is a wasteful number, since it uses less digits than its factorization.

30963098861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19990638.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 30963098861 in words is "thirty billion, nine hundred sixty-three million, ninety-eight thousand, eight hundred sixty-one".