2113142543 has 4 divisors (see below), whose sum is σ = 2115120360. Its totient is φ = 2111164728.

The previous prime is 2113142539. The next prime is 2113142617. The reversal of 2113142543 is 3452413112.

It is a happy number.

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 2113142543 - 2² = 2113142539 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 (2113142533) 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, 987305 + ... + 989442.

It is an arithmetic number, because the mean of its divisors is an integer number (528780090).

Almost surely, 2^2113142543 is an apocalyptic number.

2113142543 is a deficient number, since it is larger than the sum of its proper divisors (1977817).

2113142543 is a wasteful number, since it uses less digits than its factorization.

2113142543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977816.

The product of its digits is 2880, while the sum is 26.

The square root of 2113142543 is about 45968.9301920330. The cubic root of 2113142543 is about 1283.2450505114.

Adding to 2113142543 its reverse (3452413112), we get a palindrome (5565555655).

The spelling of 2113142543 in words is "two billion, one hundred thirteen million, one hundred forty-two thousand, five hundred forty-three".