43212007331 has 2 divisors, whose sum is σ = 43212007332. Its totient is φ = 43212007330.

The previous prime is 43212007259. The next prime is 43212007337. The reversal of 43212007331 is 13370021234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43212007331 - 2²² = 43207813027 is a prime.

It is a super-2 number, since 2×43212007331² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43212007331.

It is not a weakly prime, because it can be changed into another prime (43212007337) 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, 21606003665 + 21606003666.

It is an arithmetic number, because the mean of its divisors is an integer number (21606003666).

Almost surely, 2^43212007331 is an apocalyptic number.

43212007331 is a deficient number, since it is larger than the sum of its proper divisors (1).

43212007331 is an equidigital number, since it uses as much as digits as its factorization.

43212007331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 43212007331 its reverse (13370021234), we get a palindrome (56582028565).

The spelling of 43212007331 in words is "forty-three billion, two hundred twelve million, seven thousand, three hundred thirty-one".