2031111340 has 12 divisors (see below), whose sum is σ = 4265333856. Its totient is φ = 812444528.

The previous prime is 2031111323. The next prime is 2031111373. The reversal of 2031111340 is 431111302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50777764 + ... + 50777803.

It is an arithmetic number, because the mean of its divisors is an integer number (355444488).

Almost surely, 2^2031111340 is an apocalyptic number.

2031111340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031111340 is an abundant number, since it is smaller than the sum of its proper divisors (2234222516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031111340 is a wasteful number, since it uses less digits than its factorization.

2031111340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101555576 (or 101555574 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2031111340 is about 45067.8526224625. The cubic root of 2031111340 is about 1266.4204367486.

Adding to 2031111340 its reverse (431111302), we get a palindrome (2462222642).

The spelling of 2031111340 in words is "two billion, thirty-one million, one hundred eleven thousand, three hundred forty".