31433042093 has 2 divisors, whose sum is σ = 31433042094. Its totient is φ = 31433042092.

The previous prime is 31433042059. The next prime is 31433042101. The reversal of 31433042093 is 39024033413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31392043684 + 40998409 = 177178^2 + 6403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31433042093 is a prime.

It is a super-2 number, since 2×31433042093² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31433042393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15716521046 + 15716521047.

It is an arithmetic number, because the mean of its divisors is an integer number (15716521047).

Almost surely, 2^31433042093 is an apocalyptic number.

It is an amenable number.

31433042093 is a deficient number, since it is larger than the sum of its proper divisors (1).

31433042093 is an equidigital number, since it uses as much as digits as its factorization.

31433042093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The spelling of 31433042093 in words is "thirty-one billion, four hundred thirty-three million, forty-two thousand, ninety-three".