2011142431 has 8 divisors (see below), whose sum is σ = 2083032720. Its totient is φ = 1939421568.

The previous prime is 2011142351. The next prime is 2011142443. The reversal of 2011142431 is 1342411102.

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 2011142431 - 2¹⁹ = 2010618143 is a prime.

It is a super-2 number, since 2×2011142431² = 8089387755537179522, 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 = 2011142399 and 2011142408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011142461) 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, 17946 + ... + 65911.

It is an arithmetic number, because the mean of its divisors is an integer number (260379090).

Almost surely, 2^2011142431 is an apocalyptic number.

2011142431 is a deficient number, since it is larger than the sum of its proper divisors (71890289).

2011142431 is an equidigital number, since it uses as much as digits as its factorization.

2011142431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84713.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2011142431 is about 44845.7626872372. The cubic root of 2011142431 is about 1262.2564820781.

Adding to 2011142431 its reverse (1342411102), we get a palindrome (3353553533).

The spelling of 2011142431 in words is "two billion, eleven million, one hundred forty-two thousand, four hundred thirty-one".