2011340431 has 8 divisors (see below), whose sum is σ = 2150332704. Its totient is φ = 1874645760.

The previous prime is 2011340423. The next prime is 2011340447. The reversal of 2011340431 is 1340431102.

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

It is not a de Polignac number, because 2011340431 - 2³ = 2011340423 is a prime.

It is a super-2 number, since 2×2011340431² = 8090980658750531522, 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 = 2011340399 and 2011340408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011343431) 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, 572590 + ... + 576091.

It is an arithmetic number, because the mean of its divisors is an integer number (268791588).

Almost surely, 2^2011340431 is an apocalyptic number.

2011340431 is a deficient number, since it is larger than the sum of its proper divisors (138992273).

2011340431 is a wasteful number, since it uses less digits than its factorization.

2011340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148801.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2011340431 is about 44847.9701993301. The cubic root of 2011340431 is about 1262.2979044024.

Adding to 2011340431 its reverse (1340431102), we get a palindrome (3351771533).

The spelling of 2011340431 in words is "two billion, eleven million, three hundred forty thousand, four hundred thirty-one".