31202212979243 has 2 divisors, whose sum is σ = 31202212979244. Its totient is φ = 31202212979242.

The previous prime is 31202212979149. The next prime is 31202212979309. The reversal of 31202212979243 is 34297921220213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31202212979243 - 2¹⁴ = 31202212962859 is a prime.

It is a super-3 number, since 3×31202212979243³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (31202212979843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15601106489621 + 15601106489622.

It is an arithmetic number, because the mean of its divisors is an integer number (15601106489622).

Almost surely, 2^{31202212979243} is an apocalyptic number.

31202212979243 is a deficient number, since it is larger than the sum of its proper divisors (1).

31202212979243 is an equidigital number, since it uses as much as digits as its factorization.

31202212979243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 31202212979243 in words is "thirty-one trillion, two hundred two billion, two hundred twelve million, nine hundred seventy-nine thousand, two hundred forty-three".