1231140110042 has 64 divisors (see below), whose sum is σ = 1925801982720. Its totient is φ = 589844236800.

The previous prime is 1231140109981. The next prime is 1231140110071. The reversal of 1231140110042 is 2400110411321.

It is a junction number, because it is equal to n+sod(n) for n = 1231140109996 and 1231140110023.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1126385648 + ... + 1126386740.

It is an arithmetic number, because the mean of its divisors is an integer number (30090655980).

Almost surely, 2^{1231140110042} is an apocalyptic number.

1231140110042 is a deficient number, since it is larger than the sum of its proper divisors (694661872678).

1231140110042 is a wasteful number, since it uses less digits than its factorization.

1231140110042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1231140110042 its reverse (2400110411321), we get a palindrome (3631250521363).

The spelling of 1231140110042 in words is "one trillion, two hundred thirty-one billion, one hundred forty million, one hundred ten thousand, forty-two".