1220240041243 has 8 divisors (see below), whose sum is σ = 1264802637312. Its totient is φ = 1176452447016.

The previous prime is 1220240041217. The next prime is 1220240041331. The reversal of 1220240041243 is 3421400420221.

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

It is not a de Polignac number, because 1220240041243 - 2²⁹ = 1219703170331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220240041543) 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, 193747255 + ... + 193753552.

It is an arithmetic number, because the mean of its divisors is an integer number (158100329664).

Almost surely, 2^{1220240041243} is an apocalyptic number.

1220240041243 is a deficient number, since it is larger than the sum of its proper divisors (44562596069).

1220240041243 is an equidigital number, since it uses as much as digits as its factorization.

1220240041243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387500921.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1220240041243 its reverse (3421400420221), we get a palindrome (4641640461464).

The spelling of 1220240041243 in words is "one trillion, two hundred twenty billion, two hundred forty million, forty-one thousand, two hundred forty-three".