2131451043 has 16 divisors (see below), whose sum is σ = 2859264000. Its totient is φ = 1412328960.

The previous prime is 2131451029. The next prime is 2131451059. The reversal of 2131451043 is 3401541312.

It is a happy number.

It is not a de Polignac number, because 2131451043 - 2¹⁰ = 2131450019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131451093) 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, 362118 + ... + 367956.

It is an arithmetic number, because the mean of its divisors is an integer number (178704000).

Almost surely, 2^2131451043 is an apocalyptic number.

2131451043 is a deficient number, since it is larger than the sum of its proper divisors (727812957).

2131451043 is a wasteful number, since it uses less digits than its factorization.

2131451043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562.

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

The square root of 2131451043 is about 46167.6406479690. The cubic root of 2131451043 is about 1286.9404573723.

Adding to 2131451043 its reverse (3401541312), we get a palindrome (5532992355).

The spelling of 2131451043 in words is "two billion, one hundred thirty-one million, four hundred fifty-one thousand, forty-three".