1231040434 has 32 divisors (see below), whose sum is σ = 2041018560. Its totient is φ = 553355712.

The previous prime is 1231040429. The next prime is 1231040453. The reversal of 1231040434 is 4340401321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188329 + ... + 194755.

It is an arithmetic number, because the mean of its divisors is an integer number (63781830).

Almost surely, 2^1231040434 is an apocalyptic number.

1231040434 is a deficient number, since it is larger than the sum of its proper divisors (809978126).

1231040434 is a wasteful number, since it uses less digits than its factorization.

1231040434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6634.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1231040434 is about 35086.1858001123. The cubic root of 1231040434 is about 1071.7432885944.

Adding to 1231040434 its reverse (4340401321), we get a palindrome (5571441755).

The spelling of 1231040434 in words is "one billion, two hundred thirty-one million, forty thousand, four hundred thirty-four".