31103030047 has 2 divisors, whose sum is σ = 31103030048. Its totient is φ = 31103030046.

The previous prime is 31103030011. The next prime is 31103030071. The reversal of 31103030047 is 74003030113.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31103030047 - 2¹⁵ = 31102997279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31103030087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551515023 + 15551515024.

It is an arithmetic number, because the mean of its divisors is an integer number (15551515024).

Almost surely, 2^31103030047 is an apocalyptic number.

31103030047 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103030047 is an equidigital number, since it uses as much as digits as its factorization.

31103030047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

The spelling of 31103030047 in words is "thirty-one billion, one hundred three million, thirty thousand, forty-seven".