2011423431 has 8 divisors (see below), whose sum is σ = 2686377600. Its totient is φ = 1338709112.

The previous prime is 2011423417. The next prime is 2011423481. The reversal of 2011423431 is 1343241102.

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

It is a cyclic number.

It is not a de Polignac number, because 2011423431 - 2⁵ = 2011423399 is a prime.

It is a super-2 number, since 2×2011423431² = 8091648437551623522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2011423398 and 2011423407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011423481) 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, 557865 + ... + 561458.

It is an arithmetic number, because the mean of its divisors is an integer number (335797200).

Almost surely, 2^2011423431 is an apocalyptic number.

2011423431 is a deficient number, since it is larger than the sum of its proper divisors (674954169).

2011423431 is a wasteful number, since it uses less digits than its factorization.

2011423431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119925.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2011423431 is about 44848.8955382404. The cubic root of 2011423431 is about 1262.3152674974.

Adding to 2011423431 its reverse (1343241102), we get a palindrome (3354664533).

The spelling of 2011423431 in words is "two billion, eleven million, four hundred twenty-three thousand, four hundred thirty-one".