200010121993 has 16 divisors (see below), whose sum is σ = 219417569280. Its totient is φ = 180808723600.

The previous prime is 200010121939. The next prime is 200010122009. The reversal of 200010121993 is 399121010002.

It is a cyclic number.

It is not a de Polignac number, because 200010121993 - 2³³ = 191420187401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200010121903) 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, 2047248 + ... + 2142718.

It is an arithmetic number, because the mean of its divisors is an integer number (13713598080).

Almost surely, 2^200010121993 is an apocalyptic number.

It is an amenable number.

200010121993 is a deficient number, since it is larger than the sum of its proper divisors (19407447287).

200010121993 is a wasteful number, since it uses less digits than its factorization.

200010121993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96548.

The product of its (nonzero) digits is 972, while the sum is 28.

Adding to 200010121993 its reverse (399121010002), we get a palindrome (599131131995).

It can be divided in two parts, 200010 and 121993, that added together give a triangular number (322003 = T₈₀₂).

The spelling of 200010121993 in words is "two hundred billion, ten million, one hundred twenty-one thousand, nine hundred ninety-three".