2030072171 has 4 divisors (see below), whose sum is σ = 2030601552. Its totient is φ = 2029542792.

The previous prime is 2030072141. The next prime is 2030072173. The reversal of 2030072171 is 1712700302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2030072171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2030072173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258896 + ... + 266621.

It is an arithmetic number, because the mean of its divisors is an integer number (507650388).

Almost surely, 2^2030072171 is an apocalyptic number.

2030072171 is a deficient number, since it is larger than the sum of its proper divisors (529381).

2030072171 is an equidigital number, since it uses as much as digits as its factorization.

2030072171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529380.

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

The square root of 2030072171 is about 45056.3222089864. The cubic root of 2030072171 is about 1266.2044221077.

Adding to 2030072171 its reverse (1712700302), we get a palindrome (3742772473).

The spelling of 2030072171 in words is "two billion, thirty million, seventy-two thousand, one hundred seventy-one".