2143520063 has 4 divisors (see below), whose sum is σ = 2143656408. Its totient is φ = 2143383720.

The previous prime is 2143520011. The next prime is 2143520087. The reversal of 2143520063 is 3600253412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2143520063 - 2⁶ = 2143519999 is a prime.

It is a super-4 number, since 4×2143520063⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143525063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40973 + ... + 77238.

It is an arithmetic number, because the mean of its divisors is an integer number (535914102).

Almost surely, 2^2143520063 is an apocalyptic number.

2143520063 is a deficient number, since it is larger than the sum of its proper divisors (136345).

2143520063 is a wasteful number, since it uses less digits than its factorization.

2143520063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136344.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2143520063 is about 46298.1647908424. The cubic root of 2143520063 is about 1289.3649224594.

Adding to 2143520063 its reverse (3600253412), we get a palindrome (5743773475).

The spelling of 2143520063 in words is "two billion, one hundred forty-three million, five hundred twenty thousand, sixty-three".