1121203102023 has 12 divisors (see below), whose sum is σ = 1626777996480. Its totient is φ = 744116855616.

The previous prime is 1121203101983. The next prime is 1121203102027. The reversal of 1121203102023 is 3202013021211.

It is not a de Polignac number, because 1121203102023 - 2⁶ = 1121203101959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121203101987 and 1121203102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121203102027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279321138 + ... + 279325151.

It is an arithmetic number, because the mean of its divisors is an integer number (135564833040).

Almost surely, 2^{1121203102023} is an apocalyptic number.

1121203102023 is a deficient number, since it is larger than the sum of its proper divisors (505574894457).

1121203102023 is a wasteful number, since it uses less digits than its factorization.

1121203102023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558646518 (or 558646515 counting only the distinct ones).

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

Adding to 1121203102023 its reverse (3202013021211), we get a palindrome (4323216123234).

The spelling of 1121203102023 in words is "one trillion, one hundred twenty-one billion, two hundred three million, one hundred two thousand, twenty-three".