30998048239 has 2 divisors, whose sum is σ = 30998048240. Its totient is φ = 30998048238.

The previous prime is 30998048233. The next prime is 30998048297. The reversal of 30998048239 is 93284089903.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30998048239 - 2⁹ = 30998047727 is a prime.

It is a super-2 number, since 2×30998048239² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30998048239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30998048233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15499024119 + 15499024120.

It is an arithmetic number, because the mean of its divisors is an integer number (15499024120).

Almost surely, 2^30998048239 is an apocalyptic number.

30998048239 is a deficient number, since it is larger than the sum of its proper divisors (1).

30998048239 is an equidigital number, since it uses as much as digits as its factorization.

30998048239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 30998048239 in words is "thirty billion, nine hundred ninety-eight million, forty-eight thousand, two hundred thirty-nine".