31332319994749 has 2 divisors, whose sum is σ = 31332319994750. Its totient is φ = 31332319994748.

The previous prime is 31332319994641. The next prime is 31332319994791. The reversal of 31332319994749 is 94749991323313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31137237005625 + 195082989124 = 5580075^2 + 441682^2 .

It is a cyclic number.

It is not a de Polignac number, because 31332319994749 - 2³³ = 31323730060157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31332319964749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15666159997374 + 15666159997375.

It is an arithmetic number, because the mean of its divisors is an integer number (15666159997375).

Almost surely, 2^{31332319994749} is an apocalyptic number.

It is an amenable number.

31332319994749 is a deficient number, since it is larger than the sum of its proper divisors (1).

31332319994749 is an equidigital number, since it uses as much as digits as its factorization.

31332319994749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119042784, while the sum is 67.

The spelling of 31332319994749 in words is "thirty-one trillion, three hundred thirty-two billion, three hundred nineteen million, nine hundred ninety-four thousand, seven hundred forty-nine".