31301400323 has 2 divisors, whose sum is σ = 31301400324. Its totient is φ = 31301400322.

The previous prime is 31301400311. The next prime is 31301400343. The reversal of 31301400323 is 32300410313.

It is an a-pointer prime, because the next prime (31301400343) can be obtained adding 31301400323 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31301400323 - 2¹⁰ = 31301399299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31301400295 and 31301400304.

It is not a weakly prime, because it can be changed into another prime (31301400343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650700161 + 15650700162.

It is an arithmetic number, because the mean of its divisors is an integer number (15650700162).

Almost surely, 2^31301400323 is an apocalyptic number.

31301400323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31301400323 is an equidigital number, since it uses as much as digits as its factorization.

31301400323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31301400323 its reverse (32300410313), we get a palindrome (63601810636).

The spelling of 31301400323 in words is "thirty-one billion, three hundred one million, four hundred thousand, three hundred twenty-three".