31141040393 has 2 divisors, whose sum is σ = 31141040394. Its totient is φ = 31141040392.

The previous prime is 31141040389. The next prime is 31141040431. The reversal of 31141040393 is 39304014113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23632297984 + 7508742409 = 153728^2 + 86653^2 .

It is a cyclic number.

It is not a de Polignac number, because 31141040393 - 2² = 31141040389 is a prime.

It is not a weakly prime, because it can be changed into another prime (31141040303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15570520196 + 15570520197.

It is an arithmetic number, because the mean of its divisors is an integer number (15570520197).

Almost surely, 2^31141040393 is an apocalyptic number.

It is an amenable number.

31141040393 is a deficient number, since it is larger than the sum of its proper divisors (1).

31141040393 is an equidigital number, since it uses as much as digits as its factorization.

31141040393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 31141040393 in words is "thirty-one billion, one hundred forty-one million, forty thousand, three hundred ninety-three".