1901591430143 has 2 divisors, whose sum is σ = 1901591430144. Its totient is φ = 1901591430142.

The previous prime is 1901591430131. The next prime is 1901591430197. The reversal of 1901591430143 is 3410341951091.

It is a weak prime.

It is an emirp because it is prime and its reverse (3410341951091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1901591430143 - 2⁴⁰ = 802079802367 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1901591430143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1901591435143) 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, 950795715071 + 950795715072.

It is an arithmetic number, because the mean of its divisors is an integer number (950795715072).

Almost surely, 2^{1901591430143} is an apocalyptic number.

1901591430143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1901591430143 is an equidigital number, since it uses as much as digits as its factorization.

1901591430143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 1901591430143 in words is "one trillion, nine hundred one billion, five hundred ninety-one million, four hundred thirty thousand, one hundred forty-three".