2007103721 has 4 divisors (see below), whose sum is σ = 2293832832. Its totient is φ = 1720374612.

The previous prime is 2007103673. The next prime is 2007103723. The reversal of 2007103721 is 1273017002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2007103721 - 2¹⁰ = 2007102697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2007103723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143364545 + ... + 143364558.

It is an arithmetic number, because the mean of its divisors is an integer number (573458208).

Almost surely, 2^2007103721 is an apocalyptic number.

It is an amenable number.

2007103721 is a deficient number, since it is larger than the sum of its proper divisors (286729111).

2007103721 is an equidigital number, since it uses as much as digits as its factorization.

2007103721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286729110.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 2007103721 is about 44800.7111662304. The cubic root of 2007103721 is about 1261.4109752192.

The spelling of 2007103721 in words is "two billion, seven million, one hundred three thousand, seven hundred twenty-one".