1240432144111 has 4 divisors (see below), whose sum is σ = 1261456417800. Its totient is φ = 1219407870424.

The previous prime is 1240432144093. The next prime is 1240432144117. The reversal of 1240432144111 is 1114412340421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1240432144111 - 2⁵ = 1240432144079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240432144111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240432144117) 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, 10512136756 + ... + 10512136873.

It is an arithmetic number, because the mean of its divisors is an integer number (315364104450).

Almost surely, 2^{1240432144111} is an apocalyptic number.

1240432144111 is a deficient number, since it is larger than the sum of its proper divisors (21024273689).

1240432144111 is an equidigital number, since it uses as much as digits as its factorization.

1240432144111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21024273688.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 1240432144111 its reverse (1114412340421), we get a palindrome (2354844484532).

The spelling of 1240432144111 in words is "one trillion, two hundred forty billion, four hundred thirty-two million, one hundred forty-four thousand, one hundred eleven".