2001103139 has 8 divisors (see below), whose sum is σ = 2330125920. Its totient is φ = 1682868096.

The previous prime is 2001103129. The next prime is 2001103141. The reversal of 2001103139 is 9313011002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001103139 - 2²⁴ = 1984325923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001103139.

It is not an unprimeable number, because it can be changed into a prime (2001103129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696534 + ... + 2697275.

It is an arithmetic number, because the mean of its divisors is an integer number (291265740).

Almost surely, 2^2001103139 is an apocalyptic number.

2001103139 is a deficient number, since it is larger than the sum of its proper divisors (329022781).

2001103139 is an equidigital number, since it uses as much as digits as its factorization.

2001103139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393869.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 2001103139 is about 44733.6913187365. The cubic root of 2001103139 is about 1260.1526519930.

The spelling of 2001103139 in words is "two billion, one million, one hundred three thousand, one hundred thirty-nine".