31300000131233 has 2 divisors, whose sum is σ = 31300000131234. Its totient is φ = 31300000131232.

The previous prime is 31300000131223. The next prime is 31300000131293. The reversal of 31300000131233 is 33213100000313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19431230999569 + 11868769131664 = 4408087^2 + 3445108^2 .

It is a cyclic number.

It is not a de Polignac number, because 31300000131233 - 2¹⁴ = 31300000114849 is a prime.

It is not a weakly prime, because it can be changed into another prime (31300000131223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650000065616 + 15650000065617.

It is an arithmetic number, because the mean of its divisors is an integer number (15650000065617).

Almost surely, 2^{31300000131233} is an apocalyptic number.

It is an amenable number.

31300000131233 is a deficient number, since it is larger than the sum of its proper divisors (1).

31300000131233 is an equidigital number, since it uses as much as digits as its factorization.

31300000131233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31300000131233 its reverse (33213100000313), we get a palindrome (64513100131546).

The spelling of 31300000131233 in words is "thirty-one trillion, three hundred billion, one hundred thirty-one thousand, two hundred thirty-three".