31368260149 has 2 divisors, whose sum is σ = 31368260150. Its totient is φ = 31368260148.

The previous prime is 31368260029. The next prime is 31368260167. The reversal of 31368260149 is 94106286313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28323207025 + 3045053124 = 168295^2 + 55182^2 .

It is a cyclic number.

It is not a de Polignac number, because 31368260149 - 2¹⁵ = 31368227381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31368270149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15684130074 + 15684130075.

It is an arithmetic number, because the mean of its divisors is an integer number (15684130075).

Almost surely, 2^31368260149 is an apocalyptic number.

It is an amenable number.

31368260149 is a deficient number, since it is larger than the sum of its proper divisors (1).

31368260149 is an equidigital number, since it uses as much as digits as its factorization.

31368260149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 31368260149 in words is "thirty-one billion, three hundred sixty-eight million, two hundred sixty thousand, one hundred forty-nine".