31441000249 has 2 divisors, whose sum is σ = 31441000250. Its totient is φ = 31441000248.

The previous prime is 31441000223. The next prime is 31441000259. The reversal of 31441000249 is 94200014413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29595009024 + 1845991225 = 172032^2 + 42965^2 .

It is an emirp because it is prime and its reverse (94200014413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31441000249 - 2⁷ = 31441000121 is a prime.

It is not a weakly prime, because it can be changed into another prime (31441000259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15720500124 + 15720500125.

It is an arithmetic number, because the mean of its divisors is an integer number (15720500125).

Almost surely, 2^31441000249 is an apocalyptic number.

It is an amenable number.

31441000249 is a deficient number, since it is larger than the sum of its proper divisors (1).

31441000249 is an equidigital number, since it uses as much as digits as its factorization.

31441000249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 31441000249 in words is "thirty-one billion, four hundred forty-one million, two hundred forty-nine", and thus it is an aban number.