1240630516243 has 8 divisors (see below), whose sum is σ = 1256192356688. Its totient is φ = 1225165634784.

The previous prime is 1240630516207. The next prime is 1240630516303. The reversal of 1240630516243 is 3426150360421.

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

It is a cyclic number.

It is not a de Polignac number, because 1240630516243 - 2²⁵ = 1240596961811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240660516243) 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, 24213996 + ... + 24265177.

It is an arithmetic number, because the mean of its divisors is an integer number (157024044586).

Almost surely, 2^{1240630516243} is an apocalyptic number.

1240630516243 is a deficient number, since it is larger than the sum of its proper divisors (15561840445).

1240630516243 is a wasteful number, since it uses less digits than its factorization.

1240630516243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48479493.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 1240630516243 its reverse (3426150360421), we get a palindrome (4666780876664).

The spelling of 1240630516243 in words is "one trillion, two hundred forty billion, six hundred thirty million, five hundred sixteen thousand, two hundred forty-three".