1201136003 has 8 divisors (see below), whose sum is σ = 1278899280. Its totient is φ = 1124162560.

The previous prime is 1201135997. The next prime is 1201136009. The reversal of 1201136003 is 3006311021.

It is an interprime number because it is at equal distance from previous prime (1201135997) and next prime (1201136009).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201136003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201136009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194318 + ... + 200403.

It is an arithmetic number, because the mean of its divisors is an integer number (159862410).

Almost surely, 2^1201136003 is an apocalyptic number.

1201136003 is a deficient number, since it is larger than the sum of its proper divisors (77763277).

1201136003 is a wasteful number, since it uses less digits than its factorization.

1201136003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394917.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1201136003 is about 34657.4090635754. The cubic root of 1201136003 is about 1062.9937921238.

Adding to 1201136003 its reverse (3006311021), we get a palindrome (4207447024).

The spelling of 1201136003 in words is "one billion, two hundred one million, one hundred thirty-six thousand, three".