1232120203 has 24 divisors (see below), whose sum is σ = 1374439104. Its totient is φ = 1100286720.

The previous prime is 1232120179. The next prime is 1232120213. The reversal of 1232120203 is 3020212321.

It is not a de Polignac number, because 1232120203 - 2⁵ = 1232120171 is a prime.

It is a super-2 number, since 2×1232120203² = 3036240389281522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232120213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865150 + ... + 866572.

It is an arithmetic number, because the mean of its divisors is an integer number (57268296).

Almost surely, 2^1232120203 is an apocalyptic number.

1232120203 is a deficient number, since it is larger than the sum of its proper divisors (142318901).

1232120203 is a wasteful number, since it uses less digits than its factorization.

1232120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1232120203 is about 35101.5698082009. The cubic root of 1232120203 is about 1072.0565458380.

Adding to 1232120203 its reverse (3020212321), we get a palindrome (4252332524).

The spelling of 1232120203 in words is "one billion, two hundred thirty-two million, one hundred twenty thousand, two hundred three".