2017020431 has 4 divisors (see below), whose sum is σ = 2019098664. Its totient is φ = 2014942200.

The previous prime is 2017020413. The next prime is 2017020527. The reversal of 2017020431 is 1340207102.

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

It is a cyclic number.

It is not a de Polignac number, because 2017020431 - 2¹⁴ = 2017004047 is a prime.

It is a super-2 number, since 2×2017020431² = 8136742838142851522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2017025431) 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, 1037660 + ... + 1039601.

It is an arithmetic number, because the mean of its divisors is an integer number (504774666).

Almost surely, 2^2017020431 is an apocalyptic number.

2017020431 is a deficient number, since it is larger than the sum of its proper divisors (2078233).

2017020431 is an equidigital number, since it uses as much as digits as its factorization.

2017020431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078232.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2017020431 is about 44911.2506060564. The cubic root of 2017020431 is about 1263.4850254163.

Adding to 2017020431 its reverse (1340207102), we get a palindrome (3357227533).

The spelling of 2017020431 in words is "two billion, seventeen million, twenty thousand, four hundred thirty-one".