3111044352240 has 160 divisors (see below), whose sum is σ = 10523026483200. Its totient is φ = 754046325760.

The previous prime is 3111044352223. The next prime is 3111044352289. The reversal of 3111044352240 is 422534401113.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3111044352198 and 3111044352207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13824946 + ... + 14048174.

It is an arithmetic number, because the mean of its divisors is an integer number (65768915520).

Almost surely, 2^{3111044352240} is an apocalyptic number.

3111044352240 is a gapful number since it is divisible by the number (30) 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 3111044352240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5261513241600).

3111044352240 is an abundant number, since it is smaller than the sum of its proper divisors (7411982130960).

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

3111044352240 is a wasteful number, since it uses less digits than its factorization.

3111044352240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228535 (or 228529 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 3111044352240 its reverse (422534401113), we get a palindrome (3533578753353).

The spelling of 3111044352240 in words is "three trillion, one hundred eleven billion, forty-four million, three hundred fifty-two thousand, two hundred forty".