31113223299989 has 2 divisors, whose sum is σ = 31113223299990. Its totient is φ = 31113223299988.

The previous prime is 31113223299973. The next prime is 31113223300007. The reversal of 31113223299989 is 98999232231113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28847189837764 + 2266033462225 = 5370958^2 + 1505335^2 .

It is a cyclic number.

It is not a de Polignac number, because 31113223299989 - 2⁴ = 31113223299973 is a prime.

It is a super-2 number, since 2×31113223299989² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31113223299919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556611649994 + 15556611649995.

It is an arithmetic number, because the mean of its divisors is an integer number (15556611649995).

Almost surely, 2^{31113223299989} is an apocalyptic number.

It is an amenable number.

31113223299989 is a deficient number, since it is larger than the sum of its proper divisors (1).

31113223299989 is an equidigital number, since it uses as much as digits as its factorization.

31113223299989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11337408, while the sum is 62.

The spelling of 31113223299989 in words is "thirty-one trillion, one hundred thirteen billion, two hundred twenty-three million, two hundred ninety-nine thousand, nine hundred eighty-nine".