2003101011 has 24 divisors (see below), whose sum is σ = 3084224000. Its totient is φ = 1249093872.

The previous prime is 2003101003. The next prime is 2003101031. The reversal of 2003101011 is 1101013002.

It is not a de Polignac number, because 2003101011 - 2³ = 2003101003 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 junction number, because it is equal to n+sod(n) for n = 2003100984 and 2003101002.

It is not an unprimeable number, because it can be changed into a prime (2003101031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60631 + ... + 87648.

Almost surely, 2^2003101011 is an apocalyptic number.

2003101011 is a deficient number, since it is larger than the sum of its proper divisors (1081122989).

2003101011 is a wasteful number, since it uses less digits than its factorization.

2003101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148383 (or 148380 counting only the distinct ones).

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

The square root of 2003101011 is about 44756.0164782345. The cubic root of 2003101011 is about 1260.5718851419.

Adding to 2003101011 its reverse (1101013002), we get a palindrome (3104114013).

The spelling of 2003101011 in words is "two billion, three million, one hundred one thousand, eleven".