1434220431991 has 2 divisors, whose sum is σ = 1434220431992. Its totient is φ = 1434220431990.

The previous prime is 1434220431983. The next prime is 1434220432031. The reversal of 1434220431991 is 1991340224341.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1434220431991 - 2³ = 1434220431983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1434220431491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 717110215995 + 717110215996.

It is an arithmetic number, because the mean of its divisors is an integer number (717110215996).

Almost surely, 2^{1434220431991} is an apocalyptic number.

1434220431991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1434220431991 is an equidigital number, since it uses as much as digits as its factorization.

1434220431991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 1434220431991 in words is "one trillion, four hundred thirty-four billion, two hundred twenty million, four hundred thirty-one thousand, nine hundred ninety-one".