30988741117 has 4 divisors (see below), whose sum is σ = 31026213216. Its totient is φ = 30951269020.

The previous prime is 30988741103. The next prime is 30988741127. The reversal of 30988741117 is 71114788903.

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 a de Polignac number, because none of the positive numbers 2^k-30988741117 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30988741127) 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, 18734809 + ... + 18736462.

It is an arithmetic number, because the mean of its divisors is an integer number (7756553304).

Almost surely, 2^30988741117 is an apocalyptic number.

It is an amenable number.

30988741117 is a deficient number, since it is larger than the sum of its proper divisors (37472099).

30988741117 is an equidigital number, since it uses as much as digits as its factorization.

30988741117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37472098.

The product of its (nonzero) digits is 338688, while the sum is 49.

The spelling of 30988741117 in words is "thirty billion, nine hundred eighty-eight million, seven hundred forty-one thousand, one hundred seventeen".