2101043403 has 12 divisors (see below), whose sum is σ = 3038368320. Its totient is φ = 1399067376.

The previous prime is 2101043387. The next prime is 2101043407. The reversal of 2101043403 is 3043401012.

2101043403 is a `hidden beast` number, since 210 + 10 + 43 + 403 = 666.

It is not a de Polignac number, because 2101043403 - 2⁴ = 2101043387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101043407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127488 + ... + 143021.

It is an arithmetic number, because the mean of its divisors is an integer number (253197360).

Almost surely, 2^2101043403 is an apocalyptic number.

2101043403 is a deficient number, since it is larger than the sum of its proper divisors (937324917).

2101043403 is a wasteful number, since it uses less digits than its factorization.

2101043403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271378 (or 271375 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2101043403 is about 45837.1399958593. The cubic root of 2101043403 is about 1280.7912187826.

Adding to 2101043403 its reverse (3043401012), we get a palindrome (5144444415).

The spelling of 2101043403 in words is "two billion, one hundred one million, forty-three thousand, four hundred three".