2117011431 has 4 divisors (see below), whose sum is σ = 2822681912. Its totient is φ = 1411340952.

The previous prime is 2117011417. The next prime is 2117011469. The reversal of 2117011431 is 1341107112.

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

It is not a de Polignac number, because 2117011431 - 2¹⁰ = 2117010407 is a prime.

It is a super-2 number, since 2×2117011431² = 8963474797969335522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2117011398 and 2117011407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117011231) 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, 352835236 + ... + 352835241.

It is an arithmetic number, because the mean of its divisors is an integer number (705670478).

Almost surely, 2^2117011431 is an apocalyptic number.

2117011431 is a deficient number, since it is larger than the sum of its proper divisors (705670481).

2117011431 is an equidigital number, since it uses as much as digits as its factorization.

2117011431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705670480.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 2117011431 is about 46010.9925017924. The cubic root of 2117011431 is about 1284.0277244089.

Adding to 2117011431 its reverse (1341107112), we get a palindrome (3458118543).

The spelling of 2117011431 in words is "two billion, one hundred seventeen million, eleven thousand, four hundred thirty-one".