1231113110242 has 8 divisors (see below), whose sum is σ = 1871966510316. Its totient is φ = 607124273472.

The previous prime is 1231113110231. The next prime is 1231113110251. The reversal of 1231113110242 is 2420113111321.

It can be written as a sum of positive squares in 2 ways, for example, as 1230522085521 + 591024721 = 1109289^2 + 24311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4216140643 + ... + 4216140934.

Almost surely, 2^{1231113110242} is an apocalyptic number.

1231113110242 is a deficient number, since it is larger than the sum of its proper divisors (640853400074).

1231113110242 is an equidigital number, since it uses as much as digits as its factorization.

1231113110242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8432281652.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1231113110242 its reverse (2420113111321), we get a palindrome (3651226221563).

The spelling of 1231113110242 in words is "one trillion, two hundred thirty-one billion, one hundred thirteen million, one hundred ten thousand, two hundred forty-two".