2011404531 has 4 divisors (see below), whose sum is σ = 2681872712. Its totient is φ = 1340936352.

The previous prime is 2011404517. The next prime is 2011404541. The reversal of 2011404531 is 1354041102.

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

It is not a de Polignac number, because 2011404531 - 2¹⁰ = 2011403507 is a prime.

It is a super-2 number, since 2×2011404531² = 8091496374654659922, 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 = 2011404498 and 2011404507.

It is not an unprimeable number, because it can be changed into a prime (2011404541) 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, 335234086 + ... + 335234091.

It is an arithmetic number, because the mean of its divisors is an integer number (670468178).

Almost surely, 2^2011404531 is an apocalyptic number.

2011404531 is a deficient number, since it is larger than the sum of its proper divisors (670468181).

2011404531 is an equidigital number, since it uses as much as digits as its factorization.

2011404531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670468180.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2011404531 is about 44848.6848302155. The cubic root of 2011404531 is about 1262.3113137744.

Adding to 2011404531 its reverse (1354041102), we get a palindrome (3365445633).

The spelling of 2011404531 in words is "two billion, eleven million, four hundred four thousand, five hundred thirty-one".