1230203011 has 8 divisors (see below), whose sum is σ = 1304916480. Its totient is φ = 1155750528.

The previous prime is 1230203003. The next prime is 1230203021. The reversal of 1230203011 is 1103020321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230203011 - 2³ = 1230203003 is a prime.

It is a super-2 number, since 2×1230203011² = 3026798896546932242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230202982 and 1230203000.

It is not an unprimeable number, because it can be changed into a prime (1230203021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55491 + ... + 74428.

It is an arithmetic number, because the mean of its divisors is an integer number (163114560).

Almost surely, 2^1230203011 is an apocalyptic number.

1230203011 is a deficient number, since it is larger than the sum of its proper divisors (74713469).

1230203011 is a wasteful number, since it uses less digits than its factorization.

1230203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130493.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1230203011 is about 35074.2499705981. The cubic root of 1230203011 is about 1071.5002134300.

Adding to 1230203011 its reverse (1103020321), we get a palindrome (2333223332).

The spelling of 1230203011 in words is "one billion, two hundred thirty million, two hundred three thousand, eleven".