1243066648353 has 4 divisors (see below), whose sum is σ = 1657422197808. Its totient is φ = 828711098900.

The previous prime is 1243066648297. The next prime is 1243066648357. The reversal of 1243066648353 is 3538466603421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1243066648353 - 2¹⁶ = 1243066582817 is a prime.

It is a super-2 number, since 2×1243066648353² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1243066648296 and 1243066648305.

It is not an unprimeable number, because it can be changed into a prime (1243066648357) 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, 207177774723 + ... + 207177774728.

It is an arithmetic number, because the mean of its divisors is an integer number (414355549452).

Almost surely, 2^{1243066648353} is an apocalyptic number.

It is an amenable number.

1243066648353 is a deficient number, since it is larger than the sum of its proper divisors (414355549455).

1243066648353 is an equidigital number, since it uses as much as digits as its factorization.

1243066648353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414355549454.

The product of its (nonzero) digits is 7464960, while the sum is 51.

The spelling of 1243066648353 in words is "one trillion, two hundred forty-three billion, sixty-six million, six hundred forty-eight thousand, three hundred fifty-three".