30936878243 has 2 divisors, whose sum is σ = 30936878244. Its totient is φ = 30936878242.

The previous prime is 30936878177. The next prime is 30936878261. The reversal of 30936878243 is 34287863903.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30936878243 - 2¹⁶ = 30936812707 is a prime.

It is not a weakly prime, because it can be changed into another prime (30936878143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15468439121 + 15468439122.

It is an arithmetic number, because the mean of its divisors is an integer number (15468439122).

Almost surely, 2^30936878243 is an apocalyptic number.

30936878243 is a deficient number, since it is larger than the sum of its proper divisors (1).

30936878243 is an equidigital number, since it uses as much as digits as its factorization.

30936878243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 30936878243 in words is "thirty billion, nine hundred thirty-six million, eight hundred seventy-eight thousand, two hundred forty-three".