200507643123 has 16 divisors (see below), whose sum is σ = 271803436800. Its totient is φ = 131443051680.

The previous prime is 200507643059. The next prime is 200507643157. The reversal of 200507643123 is 321346705002.

It is not a de Polignac number, because 200507643123 - 2⁶ = 200507643059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200507642123) 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, 497368 + ... + 805226.

It is an arithmetic number, because the mean of its divisors is an integer number (16987714800).

Almost surely, 2^200507643123 is an apocalyptic number.

200507643123 is a deficient number, since it is larger than the sum of its proper divisors (71295793677).

200507643123 is a wasteful number, since it uses less digits than its factorization.

200507643123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311482.

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 200507643123 in words is "two hundred billion, five hundred seven million, six hundred forty-three thousand, one hundred twenty-three".