16201012203 has 16 divisors (see below), whose sum is σ = 24225816960. Its totient is φ = 10699732008.

The previous prime is 16201012171. The next prime is 16201012211. The reversal of 16201012203 is 30221010261.

16201012203 is a `hidden beast` number, since 1 + 620 + 10 + 12 + 20 + 3 = 666.

It is not a de Polignac number, because 16201012203 - 2⁵ = 16201012171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16201012253) 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, 2801025 + ... + 2806802.

It is an arithmetic number, because the mean of its divisors is an integer number (1514113560).

Almost surely, 2^16201012203 is an apocalyptic number.

16201012203 is a deficient number, since it is larger than the sum of its proper divisors (8024804757).

16201012203 is a wasteful number, since it uses less digits than its factorization.

16201012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607943 (or 5607937 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 16201012203 its reverse (30221010261), we get a palindrome (46422022464).

The spelling of 16201012203 in words is "sixteen billion, two hundred one million, twelve thousand, two hundred three".