2311383134928 has 160 divisors (see below), whose sum is σ = 7095637278720. Its totient is φ = 634426813440.

The previous prime is 2311383134903. The next prime is 2311383134971. The reversal of 2311383134928 is 8294313831132.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 617113 + ... + 2236871.

It is an arithmetic number, because the mean of its divisors is an integer number (44347732992).

Almost surely, 2^{2311383134928} is an apocalyptic number.

2311383134928 is a gapful number since it is divisible by the number (28) 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 2311383134928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3547818639360).

2311383134928 is an abundant number, since it is smaller than the sum of its proper divisors (4784254143792).

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

2311383134928 is a wasteful number, since it uses less digits than its factorization.

2311383134928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619945 (or 1619939 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The spelling of 2311383134928 in words is "two trillion, three hundred eleven billion, three hundred eighty-three million, one hundred thirty-four thousand, nine hundred twenty-eight".