1223685811283 has 4 divisors (see below), whose sum is σ = 1317815489088. Its totient is φ = 1129556133480.

The previous prime is 1223685811267. The next prime is 1223685811289. The reversal of 1223685811283 is 3821185863221.

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 1223685811283 - 2⁴ = 1223685811267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223685811289) 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, 47064838883 + ... + 47064838908.

It is an arithmetic number, because the mean of its divisors is an integer number (329453872272).

Almost surely, 2^{1223685811283} is an apocalyptic number.

1223685811283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1223685811283 is a deficient number, since it is larger than the sum of its proper divisors (94129677805).

1223685811283 is an equidigital number, since it uses as much as digits as its factorization.

1223685811283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94129677804.

The product of its digits is 1105920, while the sum is 50.

The spelling of 1223685811283 in words is "one trillion, two hundred twenty-three billion, six hundred eighty-five million, eight hundred eleven thousand, two hundred eighty-three".