1220233031323 has 2 divisors, whose sum is σ = 1220233031324. Its totient is φ = 1220233031322.

The previous prime is 1220233031263. The next prime is 1220233031483. The reversal of 1220233031323 is 3231303320221.

It is a weak prime.

It is an emirp because it is prime and its reverse (3231303320221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220233031323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220233035323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610116515661 + 610116515662.

It is an arithmetic number, because the mean of its divisors is an integer number (610116515662).

Almost surely, 2^{1220233031323} is an apocalyptic number.

1220233031323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220233031323 is an equidigital number, since it uses as much as digits as its factorization.

1220233031323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1220233031323 its reverse (3231303320221), we get a palindrome (4451536351544).

The spelling of 1220233031323 in words is "one trillion, two hundred twenty billion, two hundred thirty-three million, thirty-one thousand, three hundred twenty-three".