31011401441 has 2 divisors, whose sum is σ = 31011401442. Its totient is φ = 31011401440.

The previous prime is 31011401419. The next prime is 31011401467. The reversal of 31011401441 is 14410411013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31009801216 + 1600225 = 176096^2 + 1265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31011401441 is a prime.

It is not a weakly prime, because it can be changed into another prime (31011401041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15505700720 + 15505700721.

It is an arithmetic number, because the mean of its divisors is an integer number (15505700721).

Almost surely, 2^31011401441 is an apocalyptic number.

It is an amenable number.

31011401441 is a deficient number, since it is larger than the sum of its proper divisors (1).

31011401441 is an equidigital number, since it uses as much as digits as its factorization.

31011401441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 31011401441 its reverse (14410411013), we get a palindrome (45421812454).

The spelling of 31011401441 in words is "thirty-one billion, eleven million, four hundred one thousand, four hundred forty-one".