1203020111023 has 4 divisors (see below), whose sum is σ = 1203028715680. Its totient is φ = 1203011506368.

The previous prime is 1203020110951. The next prime is 1203020111063. The reversal of 1203020111023 is 3201110203021.

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 1203020111023 - 2⁹ = 1203020110511 is a prime.

It is a super-2 number, since 2×1203020111023² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203020110988 and 1203020111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203020111063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4089090 + ... + 4373407.

It is an arithmetic number, because the mean of its divisors is an integer number (300757178920).

Almost surely, 2^{1203020111023} is an apocalyptic number.

1203020111023 is a deficient number, since it is larger than the sum of its proper divisors (8604657).

1203020111023 is an equidigital number, since it uses as much as digits as its factorization.

1203020111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8604656.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1203020111023 its reverse (3201110203021), we get a palindrome (4404130314044).

The spelling of 1203020111023 in words is "one trillion, two hundred three billion, twenty million, one hundred eleven thousand, twenty-three".