31104030445321 has 2 divisors, whose sum is σ = 31104030445322. Its totient is φ = 31104030445320.

The previous prime is 31104030445273. The next prime is 31104030445381. The reversal of 31104030445321 is 12354403040113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26425305708025 + 4678724737296 = 5140555^2 + 2163036^2 .

It is a cyclic number.

It is not a de Polignac number, because 31104030445321 - 2¹¹ = 31104030443273 is a prime.

It is not a weakly prime, because it can be changed into another prime (31104030445381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15552015222660 + 15552015222661.

It is an arithmetic number, because the mean of its divisors is an integer number (15552015222661).

Almost surely, 2^{31104030445321} is an apocalyptic number.

It is an amenable number.

31104030445321 is a deficient number, since it is larger than the sum of its proper divisors (1).

31104030445321 is an equidigital number, since it uses as much as digits as its factorization.

31104030445321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 31104030445321 its reverse (12354403040113), we get a palindrome (43458433485434).

The spelling of 31104030445321 in words is "thirty-one trillion, one hundred four billion, thirty million, four hundred forty-five thousand, three hundred twenty-one".