1223012021203 has 16 divisors (see below), whose sum is σ = 1399839598080. Its totient is φ = 1046712888000.

The previous prime is 1223012021201. The next prime is 1223012021207. The reversal of 1223012021203 is 3021202103221.

It is a cyclic number.

It is not a de Polignac number, because 1223012021203 - 2¹ = 1223012021201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223012021201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31148658 + ... + 31187896.

It is an arithmetic number, because the mean of its divisors is an integer number (87489974880).

Almost surely, 2^{1223012021203} is an apocalyptic number.

1223012021203 is a deficient number, since it is larger than the sum of its proper divisors (176827576877).

1223012021203 is an equidigital number, since it uses as much as digits as its factorization.

1223012021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45858.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1223012021203 its reverse (3021202103221), we get a palindrome (4244214124424).

The spelling of 1223012021203 in words is "one trillion, two hundred twenty-three billion, twelve million, twenty-one thousand, two hundred three".