30970363681 has 4 divisors (see below), whose sum is σ = 30970815664. Its totient is φ = 30969911700.

The previous prime is 30970363667. The next prime is 30970363757. The reversal of 30970363681 is 18636307903.

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 a cyclic number.

It is not a de Polignac number, because 30970363681 - 2⁹ = 30970363169 is a prime.

It is a super-2 number, since 2×30970363681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30970363481) 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, 99675 + ... + 268096.

It is an arithmetic number, because the mean of its divisors is an integer number (7742703916).

Almost surely, 2^30970363681 is an apocalyptic number.

It is an amenable number.

30970363681 is a deficient number, since it is larger than the sum of its proper divisors (451983).

30970363681 is an equidigital number, since it uses as much as digits as its factorization.

30970363681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451982.

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 30970363681 in words is "thirty billion, nine hundred seventy million, three hundred sixty-three thousand, six hundred eighty-one".