2031111211344 has 80 divisors (see below), whose sum is σ = 5334618324480. Its totient is φ = 665742804480.

The previous prime is 2031111211321. The next prime is 2031111211403. The reversal of 2031111211344 is 4431121111302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10057249 + ... + 10257215.

It is an arithmetic number, because the mean of its divisors is an integer number (66682729056).

Almost surely, 2^{2031111211344} is an apocalyptic number.

2031111211344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031111211344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2667309162240).

2031111211344 is an abundant number, since it is smaller than the sum of its proper divisors (3303507113136).

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

2031111211344 is a wasteful number, since it uses less digits than its factorization.

2031111211344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203508 (or 203502 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 2031111211344 its reverse (4431121111302), we get a palindrome (6462232322646).

The spelling of 2031111211344 in words is "two trillion, thirty-one billion, one hundred eleven million, two hundred eleven thousand, three hundred forty-four".