2031303020111 has 4 divisors (see below), whose sum is σ = 2138213705400. Its totient is φ = 1924392334824.

The previous prime is 2031303020101. The next prime is 2031303020113. The reversal of 2031303020111 is 1110203031302.

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

It is a de Polignac number, because none of the positive numbers 2^k-2031303020111 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 2031303020111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031303020113) 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, 53455342616 + ... + 53455342653.

It is an arithmetic number, because the mean of its divisors is an integer number (534553426350).

Almost surely, 2^{2031303020111} is an apocalyptic number.

2031303020111 is a deficient number, since it is larger than the sum of its proper divisors (106910685289).

2031303020111 is a wasteful number, since it uses less digits than its factorization.

2031303020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106910685288.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 2031303020111 its reverse (1110203031302), we get a palindrome (3141506051413).

The spelling of 2031303020111 in words is "two trillion, thirty-one billion, three hundred three million, twenty thousand, one hundred eleven".