2111030331031 has 4 divisors (see below), whose sum is σ = 2111131363000. Its totient is φ = 2110929299064.

The previous prime is 2111030330993. The next prime is 2111030331041. The reversal of 2111030331031 is 1301330301112.

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

It is a cyclic number.

It is not a de Polignac number, because 2111030331031 - 2²¹ = 2111028233879 is a prime.

It is a super-2 number, since 2×2111030331031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111030331041) 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, 50484636 + ... + 50526433.

It is an arithmetic number, because the mean of its divisors is an integer number (527782840750).

Almost surely, 2^{2111030331031} is an apocalyptic number.

2111030331031 is a deficient number, since it is larger than the sum of its proper divisors (101031969).

2111030331031 is a wasteful number, since it uses less digits than its factorization.

2111030331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101031968.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 2111030331031 its reverse (1301330301112), we get a palindrome (3412360632143).

The spelling of 2111030331031 in words is "two trillion, one hundred eleven billion, thirty million, three hundred thirty-one thousand, thirty-one".