31142300123443 has 2 divisors, whose sum is σ = 31142300123444. Its totient is φ = 31142300123442.

The previous prime is 31142300123423. The next prime is 31142300123447. The reversal of 31142300123443 is 34432100324113.

It is a strong prime.

It is an emirp because it is prime and its reverse (34432100324113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31142300123443 is a prime.

It is not a weakly prime, because it can be changed into another prime (31142300123447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15571150061721 + 15571150061722.

It is an arithmetic number, because the mean of its divisors is an integer number (15571150061722).

Almost surely, 2^{31142300123443} is an apocalyptic number.

31142300123443 is a deficient number, since it is larger than the sum of its proper divisors (1).

31142300123443 is an equidigital number, since it uses as much as digits as its factorization.

31142300123443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31142300123443 its reverse (34432100324113), we get a palindrome (65574400447556).

The spelling of 31142300123443 in words is "thirty-one trillion, one hundred forty-two billion, three hundred million, one hundred twenty-three thousand, four hundred forty-three".