31212113200199 has 2 divisors, whose sum is σ = 31212113200200. Its totient is φ = 31212113200198.

The previous prime is 31212113200193. The next prime is 31212113200237. The reversal of 31212113200199 is 99100231121213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31212113200199 - 2¹⁶ = 31212113134663 is a prime.

It is a super-2 number, since 2×31212113200199² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31212113200193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15606056600099 + 15606056600100.

It is an arithmetic number, because the mean of its divisors is an integer number (15606056600100).

Almost surely, 2^{31212113200199} is an apocalyptic number.

31212113200199 is a deficient number, since it is larger than the sum of its proper divisors (1).

31212113200199 is an equidigital number, since it uses as much as digits as its factorization.

31212113200199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 31212113200199 in words is "thirty-one trillion, two hundred twelve billion, one hundred thirteen million, two hundred thousand, one hundred ninety-nine".