31283870941 has 2 divisors, whose sum is σ = 31283870942. Its totient is φ = 31283870940.

The previous prime is 31283870911. The next prime is 31283870983. The reversal of 31283870941 is 14907838213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29179814041 + 2104056900 = 170821^2 + 45870^2 .

It is an emirp because it is prime and its reverse (14907838213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31283870941 - 2⁵ = 31283870909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31283870891 and 31283870900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31283870911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15641935470 + 15641935471.

It is an arithmetic number, because the mean of its divisors is an integer number (15641935471).

Almost surely, 2^31283870941 is an apocalyptic number.

It is an amenable number.

31283870941 is a deficient number, since it is larger than the sum of its proper divisors (1).

31283870941 is an equidigital number, since it uses as much as digits as its factorization.

31283870941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 31283870941 in words is "thirty-one billion, two hundred eighty-three million, eight hundred seventy thousand, nine hundred forty-one".