31013002321109 has 2 divisors, whose sum is σ = 31013002321110. Its totient is φ = 31013002321108.

The previous prime is 31013002321069. The next prime is 31013002321129. The reversal of 31013002321109 is 90112320031013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28160693422225 + 2852308898884 = 5306665^2 + 1688878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31013002321109 is a prime.

It is a super-2 number, since 2×31013002321109² (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 (31013002321129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506501160554 + 15506501160555.

It is an arithmetic number, because the mean of its divisors is an integer number (15506501160555).

Almost surely, 2^{31013002321109} is an apocalyptic number.

It is an amenable number.

31013002321109 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013002321109 is an equidigital number, since it uses as much as digits as its factorization.

31013002321109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 31013002321109 in words is "thirty-one trillion, thirteen billion, two million, three hundred twenty-one thousand, one hundred nine".