31200211210313 has 2 divisors, whose sum is σ = 31200211210314. Its totient is φ = 31200211210312.

The previous prime is 31200211210249. The next prime is 31200211210351. The reversal of 31200211210313 is 31301211200213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24489562408249 + 6710648802064 = 4948693^2 + 2590492^2 .

It is a cyclic number.

It is not a de Polignac number, because 31200211210313 - 2⁶ = 31200211210249 is a prime.

It is not a weakly prime, because it can be changed into another prime (31200211210013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15600105605156 + 15600105605157.

It is an arithmetic number, because the mean of its divisors is an integer number (15600105605157).

Almost surely, 2^{31200211210313} is an apocalyptic number.

It is an amenable number.

31200211210313 is a deficient number, since it is larger than the sum of its proper divisors (1).

31200211210313 is an equidigital number, since it uses as much as digits as its factorization.

31200211210313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31200211210313 its reverse (31301211200213), we get a palindrome (62501422410526).

It can be divided in two parts, 3120021 and 1210313, that added together give a palindrome (4330334).

The spelling of 31200211210313 in words is "thirty-one trillion, two hundred billion, two hundred eleven million, two hundred ten thousand, three hundred thirteen".