20101123199 has 8 divisors (see below), whose sum is σ = 20901007488. Its totient is φ = 19310705280.

The previous prime is 20101123157. The next prime is 20101123219. The reversal of 20101123199 is 99132110102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20101123199 - 2¹⁶ = 20101057663 is a prime.

It is a super-2 number, since 2×20101123199² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101123129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2362262 + ... + 2370755.

It is an arithmetic number, because the mean of its divisors is an integer number (2612625936).

Almost surely, 2^20101123199 is an apocalyptic number.

20101123199 is a deficient number, since it is larger than the sum of its proper divisors (799884289).

20101123199 is a wasteful number, since it uses less digits than its factorization.

20101123199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733185.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 20101123199 in words is "twenty billion, one hundred one million, one hundred twenty-three thousand, one hundred ninety-nine".