31331330041409 has 2 divisors, whose sum is σ = 31331330041410. Its totient is φ = 31331330041408.

The previous prime is 31331330041397. The next prime is 31331330041469. The reversal of 31331330041409 is 90414003313313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24830089680400 + 6501240361009 = 4982980^2 + 2549753^2 .

It is a cyclic number.

It is not a de Polignac number, because 31331330041409 - 2¹⁶ = 31331329975873 is a prime.

It is not a weakly prime, because it can be changed into another prime (31331330041469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15665665020704 + 15665665020705.

It is an arithmetic number, because the mean of its divisors is an integer number (15665665020705).

Almost surely, 2^{31331330041409} is an apocalyptic number.

It is an amenable number.

31331330041409 is a deficient number, since it is larger than the sum of its proper divisors (1).

31331330041409 is an equidigital number, since it uses as much as digits as its factorization.

31331330041409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 31331330041409 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred thirty million, forty-one thousand, four hundred nine".