30681220607 has 2 divisors, whose sum is σ = 30681220608. Its totient is φ = 30681220606.

The previous prime is 30681220547. The next prime is 30681220631. The reversal of 30681220607 is 70602218603.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30681220607 - 2²⁴ = 30664443391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30681220657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15340610303 + 15340610304.

It is an arithmetic number, because the mean of its divisors is an integer number (15340610304).

Almost surely, 2^30681220607 is an apocalyptic number.

30681220607 is a deficient number, since it is larger than the sum of its proper divisors (1).

30681220607 is an equidigital number, since it uses as much as digits as its factorization.

30681220607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 30681220607 in words is "thirty billion, six hundred eighty-one million, two hundred twenty thousand, six hundred seven".