2112543031503 has 8 divisors (see below), whose sum is σ = 2826892721968. Its totient is φ = 1403277681024.

The previous prime is 2112543031481. The next prime is 2112543031507. The reversal of 2112543031503 is 3051303452112.

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

It is not a de Polignac number, because 2112543031503 - 2⁶ = 2112543031439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112543031507) 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, 1271084026 + ... + 1271085687.

It is an arithmetic number, because the mean of its divisors is an integer number (353361590246).

Almost surely, 2^{2112543031503} is an apocalyptic number.

2112543031503 is a deficient number, since it is larger than the sum of its proper divisors (714349690465).

2112543031503 is a wasteful number, since it uses less digits than its factorization.

2112543031503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542169993.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 2112543031503 its reverse (3051303452112), we get a palindrome (5163846483615).

The spelling of 2112543031503 in words is "two trillion, one hundred twelve billion, five hundred forty-three million, thirty-one thousand, five hundred three".