1203312023 has 4 divisors (see below), whose sum is σ = 1214994768. Its totient is φ = 1191629280.

The previous prime is 1203311959. The next prime is 1203312041. The reversal of 1203312023 is 3202133021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3202133021 = 863 ⋅3710467.

It is a cyclic number.

It is not a de Polignac number, because 1203312023 - 2⁶ = 1203311959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203311992 and 1203312010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203312623) 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 3 ways as a sum of consecutive naturals, for example, 5841218 + ... + 5841423.

It is an arithmetic number, because the mean of its divisors is an integer number (303748692).

Almost surely, 2^1203312023 is an apocalyptic number.

1203312023 is a deficient number, since it is larger than the sum of its proper divisors (11682745).

1203312023 is a wasteful number, since it uses less digits than its factorization.

1203312023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11682744.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1203312023 is about 34688.7881454513. The cubic root of 1203312023 is about 1063.6353237854.

Adding to 1203312023 its reverse (3202133021), we get a palindrome (4405445044).

The spelling of 1203312023 in words is "one billion, two hundred three million, three hundred twelve thousand, twenty-three".