31411043449 has 2 divisors, whose sum is σ = 31411043450. Its totient is φ = 31411043448.

The previous prime is 31411043359. The next prime is 31411043459. The reversal of 31411043449 is 94434011413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26346159225 + 5064884224 = 162315^2 + 71168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31411043449 is a prime.

It is not a weakly prime, because it can be changed into another prime (31411043459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15705521724 + 15705521725.

It is an arithmetic number, because the mean of its divisors is an integer number (15705521725).

Almost surely, 2^31411043449 is an apocalyptic number.

It is an amenable number.

31411043449 is a deficient number, since it is larger than the sum of its proper divisors (1).

31411043449 is an equidigital number, since it uses as much as digits as its factorization.

31411043449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 31411043449 in words is "thirty-one billion, four hundred eleven million, forty-three thousand, four hundred forty-nine".