1240031040407 has 2 divisors, whose sum is σ = 1240031040408. Its totient is φ = 1240031040406.

The previous prime is 1240031040383. The next prime is 1240031040467. The reversal of 1240031040407 is 7040401300421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240031040407 - 2¹⁰ = 1240031039383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240031040467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620015520203 + 620015520204.

It is an arithmetic number, because the mean of its divisors is an integer number (620015520204).

Almost surely, 2^{1240031040407} is an apocalyptic number.

1240031040407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240031040407 is an equidigital number, since it uses as much as digits as its factorization.

1240031040407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 1240031040407 its reverse (7040401300421), we get a palindrome (8280432340828).

The spelling of 1240031040407 in words is "one trillion, two hundred forty billion, thirty-one million, forty thousand, four hundred seven".