1012001103 has 12 divisors (see below), whose sum is σ = 1462261528. Its totient is φ = 674444880.

The previous prime is 1012001101. The next prime is 1012001131. The reversal of 1012001103 is 3011002101.

It is not a de Polignac number, because 1012001103 - 2¹ = 1012001101 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012001101) 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, 13101 + ... + 46857.

Almost surely, 2^1012001103 is an apocalyptic number.

1012001103 is a deficient number, since it is larger than the sum of its proper divisors (450260425).

1012001103 is a wasteful number, since it uses less digits than its factorization.

1012001103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37094 (or 37091 counting only the distinct ones).

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

The square root of 1012001103 is about 31811.9647774230. The cubic root of 1012001103 is about 1003.9844705751.

Adding to 1012001103 its reverse (3011002101), we get a palindrome (4023003204).

The spelling of 1012001103 in words is "one billion, twelve million, one thousand, one hundred three".