3111421431140 has 96 divisors (see below), whose sum is σ = 7257032939520. Its totient is φ = 1110985545600.

The previous prime is 3111421431089. The next prime is 3111421431179. The reversal of 3111421431140 is 411341241113.

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, 11325605 + ... + 11597075.

It is an arithmetic number, because the mean of its divisors is an integer number (75594093120).

Almost surely, 2^{3111421431140} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111421431140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3628516469760).

3111421431140 is an abundant number, since it is smaller than the sum of its proper divisors (4145611508380).

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

3111421431140 is a wasteful number, since it uses less digits than its factorization.

3111421431140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272433 (or 272431 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 3111421431140 its reverse (411341241113), we get a palindrome (3522762672253).

The spelling of 3111421431140 in words is "three trillion, one hundred eleven billion, four hundred twenty-one million, four hundred thirty-one thousand, one hundred forty".