43312121314087 has 2 divisors, whose sum is σ = 43312121314088. Its totient is φ = 43312121314086.

The previous prime is 43312121314057. The next prime is 43312121314123. The reversal of 43312121314087 is 78041312121334.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43312121314087 - 2²³ = 43312112925479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43312121314027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21656060657043 + 21656060657044.

It is an arithmetic number, because the mean of its divisors is an integer number (21656060657044).

Almost surely, 2^{43312121314087} is an apocalyptic number.

43312121314087 is a deficient number, since it is larger than the sum of its proper divisors (1).

43312121314087 is an equidigital number, since it uses as much as digits as its factorization.

43312121314087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 43312121314087 in words is "forty-three trillion, three hundred twelve billion, one hundred twenty-one million, three hundred fourteen thousand, eighty-seven".