31031130002149 has 2 divisors, whose sum is σ = 31031130002150. Its totient is φ = 31031130002148.

The previous prime is 31031130002083. The next prime is 31031130002231. The reversal of 31031130002149 is 94120003113013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30458731837249 + 572398164900 = 5518943^2 + 756570^2 .

It is a cyclic number.

It is not a de Polignac number, because 31031130002149 - 2⁷ = 31031130002021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31031130009149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15515565001074 + 15515565001075.

It is an arithmetic number, because the mean of its divisors is an integer number (15515565001075).

Almost surely, 2^{31031130002149} is an apocalyptic number.

It is an amenable number.

31031130002149 is a deficient number, since it is larger than the sum of its proper divisors (1).

31031130002149 is an equidigital number, since it uses as much as digits as its factorization.

31031130002149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 31031130002149 in words is "thirty-one trillion, thirty-one billion, one hundred thirty million, two thousand, one hundred forty-nine".