31430033110243 has 2 divisors, whose sum is σ = 31430033110244. Its totient is φ = 31430033110242.

The previous prime is 31430033110213. The next prime is 31430033110271. The reversal of 31430033110243 is 34201133003413.

It is an a-pointer prime, because the next prime (31430033110271) can be obtained adding 31430033110243 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31430033110243 is a prime.

It is not a weakly prime, because it can be changed into another prime (31430033110213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15715016555121 + 15715016555122.

It is an arithmetic number, because the mean of its divisors is an integer number (15715016555122).

Almost surely, 2^{31430033110243} is an apocalyptic number.

31430033110243 is a deficient number, since it is larger than the sum of its proper divisors (1).

31430033110243 is an equidigital number, since it uses as much as digits as its factorization.

31430033110243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 31430033110243 its reverse (34201133003413), we get a palindrome (65631166113656).

The spelling of 31430033110243 in words is "thirty-one trillion, four hundred thirty billion, thirty-three million, one hundred ten thousand, two hundred forty-three".