1203020023 has 4 divisors (see below), whose sum is σ = 1225718568. Its totient is φ = 1180321480.

The previous prime is 1203020003. The next prime is 1203020047. The reversal of 1203020023 is 3200203021.

It is a happy number.

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 1203020023 - 2²¹ = 1200922871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203019985 and 1203020012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203020003) 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, 11349193 + ... + 11349298.

It is an arithmetic number, because the mean of its divisors is an integer number (306429642).

Almost surely, 2^1203020023 is an apocalyptic number.

1203020023 is a deficient number, since it is larger than the sum of its proper divisors (22698545).

1203020023 is an equidigital number, since it uses as much as digits as its factorization.

1203020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22698544.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1203020023 is about 34684.5790373763. The cubic root of 1203020023 is about 1063.5492816411.

Adding to 1203020023 its reverse (3200203021), we get a palindrome (4403223044).

The spelling of 1203020023 in words is "one billion, two hundred three million, twenty thousand, twenty-three".