31433054323243 has 2 divisors, whose sum is σ = 31433054323244. Its totient is φ = 31433054323242.

The previous prime is 31433054323201. The next prime is 31433054323291. The reversal of 31433054323243 is 34232345033413.

It is a weak prime.

It is an emirp because it is prime and its reverse (34232345033413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31433054323243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31433054323196 and 31433054323205.

It is not a weakly prime, because it can be changed into another prime (31433054323043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15716527161621 + 15716527161622.

It is an arithmetic number, because the mean of its divisors is an integer number (15716527161622).

Almost surely, 2^{31433054323243} is an apocalyptic number.

31433054323243 is a deficient number, since it is larger than the sum of its proper divisors (1).

31433054323243 is an equidigital number, since it uses as much as digits as its factorization.

31433054323243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 40.

Adding to 31433054323243 its reverse (34232345033413), we get a palindrome (65665399356656).

The spelling of 31433054323243 in words is "thirty-one trillion, four hundred thirty-three billion, fifty-four million, three hundred twenty-three thousand, two hundred forty-three".