2001050643343 has 16 divisors (see below), whose sum is σ = 2082749932800. Its totient is φ = 1920470572800.

The previous prime is 2001050643313. The next prime is 2001050643407. The reversal of 2001050643343 is 3433460501002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001050643343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001050643313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2141133 + ... + 2930281.

It is an arithmetic number, because the mean of its divisors is an integer number (130171870800).

Almost surely, 2^{2001050643343} is an apocalyptic number.

2001050643343 is a deficient number, since it is larger than the sum of its proper divisors (81699289457).

2001050643343 is a wasteful number, since it uses less digits than its factorization.

2001050643343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789858.

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 2001050643343 in words is "two trillion, one billion, fifty million, six hundred forty-three thousand, three hundred forty-three".