1440120304243 has 8 divisors (see below), whose sum is σ = 1441012104000. Its totient is φ = 1439228672448.

The previous prime is 1440120304193. The next prime is 1440120304267. The reversal of 1440120304243 is 3424030210441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440120304243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440120304283) 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, 20007783 + ... + 20079631.

It is an arithmetic number, because the mean of its divisors is an integer number (180126513000).

Almost surely, 2^{1440120304243} is an apocalyptic number.

1440120304243 is a deficient number, since it is larger than the sum of its proper divisors (891799757).

1440120304243 is a wasteful number, since it uses less digits than its factorization.

1440120304243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83981.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1440120304243 its reverse (3424030210441), we get a palindrome (4864150514684).

The spelling of 1440120304243 in words is "one trillion, four hundred forty billion, one hundred twenty million, three hundred four thousand, two hundred forty-three".