31223201201 has 32 divisors (see below), whose sum is σ = 34936151040. Its totient is φ = 27769794624.

The previous prime is 31223201143. The next prime is 31223201267. The reversal of 31223201201 is 10210232213.

It is a cyclic number.

It is not a de Polignac number, because 31223201201 - 2¹⁸ = 31222939057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31223201201.

It is not an unprimeable number, because it can be changed into a prime (31223209201) 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 in 31 ways as a sum of consecutive naturals, for example, 5691806 + ... + 5697288.

It is an arithmetic number, because the mean of its divisors is an integer number (1091754720).

Almost surely, 2^31223201201 is an apocalyptic number.

It is an amenable number.

31223201201 is a deficient number, since it is larger than the sum of its proper divisors (3712949839).

31223201201 is a wasteful number, since it uses less digits than its factorization.

31223201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5765.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31223201201 its reverse (10210232213), we get a palindrome (41433433414).

The spelling of 31223201201 in words is "thirty-one billion, two hundred twenty-three million, two hundred one thousand, two hundred one".