2011013031 has 4 divisors (see below), whose sum is σ = 2681350712. Its totient is φ = 1340675352.

The previous prime is 2011013023. The next prime is 2011013057. The reversal of 2011013031 is 1303101102.

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

It is not a de Polignac number, because 2011013031 - 2³ = 2011013023 is a prime.

It is a super-2 number, since 2×2011013031² = 8088346821703613922, 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 = 2011012998 and 2011013016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011013131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335168836 + ... + 335168841.

It is an arithmetic number, because the mean of its divisors is an integer number (670337678).

Almost surely, 2^2011013031 is an apocalyptic number.

2011013031 is a deficient number, since it is larger than the sum of its proper divisors (670337681).

2011013031 is an equidigital number, since it uses as much as digits as its factorization.

2011013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670337680.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 2011013031 is about 44844.3199413259. The cubic root of 2011013031 is about 1262.2294096558.

Adding to 2011013031 its reverse (1303101102), we get a palindrome (3314114133).

The spelling of 2011013031 in words is "two billion, eleven million, thirteen thousand, thirty-one".