1011201003 has 36 divisors (see below), whose sum is σ = 1582905168. Its totient is φ = 644727600.

The previous prime is 1011200989. The next prime is 1011201011. The reversal of 1011201003 is 3001021101.

It is not a de Polignac number, because 1011201003 - 2¹⁴ = 1011184619 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1011201703) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 147553 + ... + 154253.

It is an arithmetic number, because the mean of its divisors is an integer number (43969588).

Almost surely, 2^1011201003 is an apocalyptic number.

1011201003 is a deficient number, since it is larger than the sum of its proper divisors (571704165).

1011201003 is an frugal number, since it uses more digits than its factorization.

1011201003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6748 (or 6727 counting only the distinct ones).

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

The square root of 1011201003 is about 31799.3868337111. The cubic root of 1011201003 is about 1003.7198134972.

Adding to 1011201003 its reverse (3001021101), we get a palindrome (4012222104).

The spelling of 1011201003 in words is "one billion, eleven million, two hundred one thousand, three".