2143103451 has 16 divisors (see below), whose sum is σ = 2965670400. Its totient is φ = 1374958368.

The previous prime is 2143103449. The next prime is 2143103471. The reversal of 2143103451 is 1543013412.

It is a happy number.

It is not a de Polignac number, because 2143103451 - 2¹ = 2143103449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2143103411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13411 + ... + 66828.

It is an arithmetic number, because the mean of its divisors is an integer number (185354400).

Almost surely, 2^2143103451 is an apocalyptic number.

2143103451 is a deficient number, since it is larger than the sum of its proper divisors (822566949).

2143103451 is a wasteful number, since it uses less digits than its factorization.

2143103451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80578.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2143103451 is about 46293.6653441915. The cubic root of 2143103451 is about 1289.2813839048.

Adding to 2143103451 its reverse (1543013412), we get a palindrome (3686116863).

The spelling of 2143103451 in words is "two billion, one hundred forty-three million, one hundred three thousand, four hundred fifty-one".