1221134000323 has 4 divisors (see below), whose sum is σ = 1230749228800. Its totient is φ = 1211518771848.

The previous prime is 1221134000287. The next prime is 1221134000341. The reversal of 1221134000323 is 3230004311221.

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 1221134000323 - 2²⁵ = 1221100445891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1221134000294 and 1221134000303.

It is not an unprimeable number, because it can be changed into a prime (1221134000423) 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, 4807614048 + ... + 4807614301.

It is an arithmetic number, because the mean of its divisors is an integer number (307687307200).

Almost surely, 2^{1221134000323} is an apocalyptic number.

1221134000323 is a deficient number, since it is larger than the sum of its proper divisors (9615228477).

1221134000323 is an equidigital number, since it uses as much as digits as its factorization.

1221134000323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9615228476.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1221134000323 its reverse (3230004311221), we get a palindrome (4451138311544).

The spelling of 1221134000323 in words is "one trillion, two hundred twenty-one billion, one hundred thirty-four million, three hundred twenty-three", and thus it is an aban number.