1203120011 has 8 divisors (see below), whose sum is σ = 1209815040. Its totient is φ = 1196437032.

The previous prime is 1203120007. The next prime is 1203120029. The reversal of 1203120011 is 1100213021.

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 1203120011 - 2² = 1203120007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203119974 and 1203120001.

It is not an unprimeable number, because it can be changed into a prime (1203120001) 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 7 ways as a sum of consecutive naturals, for example, 257030 + ... + 261668.

It is an arithmetic number, because the mean of its divisors is an integer number (151226880).

Almost surely, 2^1203120011 is an apocalyptic number.

1203120011 is a deficient number, since it is larger than the sum of its proper divisors (6695029).

1203120011 is a wasteful number, since it uses less digits than its factorization.

1203120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6025.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1203120011 is about 34686.0203972724. The cubic root of 1203120011 is about 1063.5787461602.

Adding to 1203120011 its reverse (1100213021), we get a palindrome (2303333032).

The spelling of 1203120011 in words is "one billion, two hundred three million, one hundred twenty thousand, eleven".