1201101003 has 12 divisors (see below), whose sum is σ = 1735556368. Its totient is φ = 800442000.

The previous prime is 1201100981. The next prime is 1201101007. The reversal of 1201101003 is 3001011021.

It is not a de Polignac number, because 1201101003 - 2⁶ = 1201100939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201101007) 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 11 ways as a sum of consecutive naturals, for example, 3378 + ... + 49128.

Almost surely, 2^1201101003 is an apocalyptic number.

1201101003 is a deficient number, since it is larger than the sum of its proper divisors (534455365).

1201101003 is a wasteful number, since it uses less digits than its factorization.

1201101003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48674 (or 48671 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1201101003 is about 34656.9041173617. The cubic root of 1201101003 is about 1062.9834671359.

Adding to 1201101003 its reverse (3001011021), we get a palindrome (4202112024).

The spelling of 1201101003 in words is "one billion, two hundred one million, one hundred one thousand, three".