2112131100133 has 4 divisors (see below), whose sum is σ = 2115269482828. Its totient is φ = 2108992717440.

The previous prime is 2112131100127. The next prime is 2112131100137. The reversal of 2112131100133 is 3310011312112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 274867421284 + 1837263678849 = 524278^2 + 1355457^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112131100133 - 2²¹ = 2112129002981 is a prime.

It is a super-2 number, since 2×2112131100133² (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 2112131100133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112131100137) 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, 1569190338 + ... + 1569191683.

It is an arithmetic number, because the mean of its divisors is an integer number (528817370707).

Almost surely, 2^{2112131100133} is an apocalyptic number.

It is an amenable number.

2112131100133 is a deficient number, since it is larger than the sum of its proper divisors (3138382695).

2112131100133 is an equidigital number, since it uses as much as digits as its factorization.

2112131100133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138382694.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2112131100133 its reverse (3310011312112), we get a palindrome (5422142412245).

The spelling of 2112131100133 in words is "two trillion, one hundred twelve billion, one hundred thirty-one million, one hundred thousand, one hundred thirty-three".