2001213412143 has 32 divisors (see below), whose sum is σ = 3045296120832. Its totient is φ = 1158098649600.

The previous prime is 2001213412139. The next prime is 2001213412169. The reversal of 2001213412143 is 3412143121002.

It is not a de Polignac number, because 2001213412143 - 2² = 2001213412139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001213412103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15671446 + ... + 15798627.

It is an arithmetic number, because the mean of its divisors is an integer number (95165503776).

Almost surely, 2^{2001213412143} is an apocalyptic number.

2001213412143 is a deficient number, since it is larger than the sum of its proper divisors (1044082708689).

2001213412143 is a wasteful number, since it uses less digits than its factorization.

2001213412143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31470175.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2001213412143 its reverse (3412143121002), we get a palindrome (5413356533145).

The spelling of 2001213412143 in words is "two trillion, one billion, two hundred thirteen million, four hundred twelve thousand, one hundred forty-three".