2031040551 has 4 divisors (see below), whose sum is σ = 2708054072. Its totient is φ = 1354027032.

The previous prime is 2031040523. The next prime is 2031040559. The reversal of 2031040551 is 1550401302.

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

It is not a de Polignac number, because 2031040551 - 2²⁵ = 1997486119 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 (2031040559) 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, 338506756 + ... + 338506761.

It is an arithmetic number, because the mean of its divisors is an integer number (677013518).

Almost surely, 2^2031040551 is an apocalyptic number.

2031040551 is a deficient number, since it is larger than the sum of its proper divisors (677013521).

2031040551 is an equidigital number, since it uses as much as digits as its factorization.

2031040551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677013520.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2031040551 is about 45067.0672553695. The cubic root of 2031040551 is about 1266.4057240023.

Adding to 2031040551 its reverse (1550401302), we get a palindrome (3581441853).

The spelling of 2031040551 in words is "two billion, thirty-one million, forty thousand, five hundred fifty-one".