1240320122003 has 4 divisors (see below), whose sum is σ = 1257789419568. Its totient is φ = 1222850824440.

The previous prime is 1240320121981. The next prime is 1240320122023. The reversal of 1240320122003 is 3002210230421.

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 1240320122003 - 2³⁰ = 1239246380179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240320122023) 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, 8734648676 + ... + 8734648817.

It is an arithmetic number, because the mean of its divisors is an integer number (314447354892).

Almost surely, 2^{1240320122003} is an apocalyptic number.

1240320122003 is a deficient number, since it is larger than the sum of its proper divisors (17469297565).

1240320122003 is an equidigital number, since it uses as much as digits as its factorization.

1240320122003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17469297564.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1240320122003 its reverse (3002210230421), we get a palindrome (4242530352424).

The spelling of 1240320122003 in words is "one trillion, two hundred forty billion, three hundred twenty million, one hundred twenty-two thousand, three".