2511431042 has 16 divisors (see below), whose sum is σ = 3947823360. Its totient is φ = 1195959072.

The previous prime is 2511431017. The next prime is 2511431047. The reversal of 2511431042 is 2401341152.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 2511430999 and 2511431017.

It is not an unprimeable number, because it can be changed into a prime (2511431047) 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, 106442 + ... + 127877.

It is an arithmetic number, because the mean of its divisors is an integer number (246738960).

Almost surely, 2^2511431042 is an apocalyptic number.

2511431042 is a deficient number, since it is larger than the sum of its proper divisors (1436392318).

2511431042 is a wasteful number, since it uses less digits than its factorization.

2511431042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234577.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2511431042 is about 50114.1800491637. The cubic root of 2511431042 is about 1359.2742382720.

Adding to 2511431042 its reverse (2401341152), we get a palindrome (4912772194).

The spelling of 2511431042 in words is "two billion, five hundred eleven million, four hundred thirty-one thousand, forty-two".