3031131122011 has 4 divisors (see below), whose sum is σ = 3031469087400. Its totient is φ = 3030793156624.

The previous prime is 3031131121981. The next prime is 3031131122023. The reversal of 3031131122011 is 1102211311303.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3031131122011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3031131122011.

It is not an unprimeable number, because it can be changed into a prime (3031131122081) 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, 168969241 + ... + 168987178.

It is an arithmetic number, because the mean of its divisors is an integer number (757867271850).

Almost surely, 2^{3031131122011} is an apocalyptic number.

3031131122011 is a deficient number, since it is larger than the sum of its proper divisors (337965389).

3031131122011 is an equidigital number, since it uses as much as digits as its factorization.

3031131122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337965388.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 3031131122011 its reverse (1102211311303), we get a palindrome (4133342433314).

The spelling of 3031131122011 in words is "three trillion, thirty-one billion, one hundred thirty-one million, one hundred twenty-two thousand, eleven".