1223021012103 has 48 divisors (see below), whose sum is σ = 2037872858112. Its totient is φ = 699818832000.

The previous prime is 1223021012089. The next prime is 1223021012131. The reversal of 1223021012103 is 3012101203221.

1223021012103 is a `hidden beast` number, since 12 + 230 + 210 + 1 + 210 + 3 = 666.

It is not a de Polignac number, because 1223021012103 - 2⁸ = 1223021011847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223021012173) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4734025 + ... + 4985682.

It is an arithmetic number, because the mean of its divisors is an integer number (42455684544).

Almost surely, 2^{1223021012103} is an apocalyptic number.

1223021012103 is a deficient number, since it is larger than the sum of its proper divisors (814851846009).

1223021012103 is a wasteful number, since it uses less digits than its factorization.

1223021012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9719796 (or 9719793 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1223021012103 its reverse (3012101203221), we get a palindrome (4235122215324).

The spelling of 1223021012103 in words is "one trillion, two hundred twenty-three billion, twenty-one million, twelve thousand, one hundred three".