2031281188199 has 4 divisors (see below), whose sum is σ = 2138190724440. Its totient is φ = 1924371651960.

The previous prime is 2031281188171. The next prime is 2031281188217. The reversal of 2031281188199 is 9918811821302.

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 2031281188199 - 2¹² = 2031281184103 is a prime.

It is a super-2 number, since 2×2031281188199² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031281188199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031281188159) 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, 53454768092 + ... + 53454768129.

It is an arithmetic number, because the mean of its divisors is an integer number (534547681110).

Almost surely, 2^{2031281188199} is an apocalyptic number.

2031281188199 is a deficient number, since it is larger than the sum of its proper divisors (106909536241).

2031281188199 is a wasteful number, since it uses less digits than its factorization.

2031281188199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106909536240.

The product of its (nonzero) digits is 497664, while the sum is 53.

The spelling of 2031281188199 in words is "two trillion, thirty-one billion, two hundred eighty-one million, one hundred eighty-eight thousand, one hundred ninety-nine".