31332021213803 has 2 divisors, whose sum is σ = 31332021213804. Its totient is φ = 31332021213802.

The previous prime is 31332021213721. The next prime is 31332021213811. The reversal of 31332021213803 is 30831212023313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31332021213803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31332021213803.

It is not a weakly prime, because it can be changed into another prime (31332021213833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15666010606901 + 15666010606902.

It is an arithmetic number, because the mean of its divisors is an integer number (15666010606902).

Almost surely, 2^{31332021213803} is an apocalyptic number.

31332021213803 is a deficient number, since it is larger than the sum of its proper divisors (1).

31332021213803 is an equidigital number, since it uses as much as digits as its factorization.

31332021213803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 31332021213803 in words is "thirty-one trillion, three hundred thirty-two billion, twenty-one million, two hundred thirteen thousand, eight hundred three".