5111320040000 has 140 divisors (see below), whose sum is σ = 12680896473564. Its totient is φ = 2043482112000.

The previous prime is 5111320039993. The next prime is 5111320040027. The reversal of 5111320040000 is 400231115.

It can be written as a sum of positive squares in 10 ways, for example, as 1907735539264 + 3203584500736 = 1381208^2 + 1789856^2 .

It is a super-2 number, since 2×5111320040000² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 80648324 + ... + 80711676.

Almost surely, 2^{5111320040000} is an apocalyptic number.

5111320040000 is a gapful number since it is divisible by the number (50) 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 5111320040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6340448236782).

5111320040000 is an abundant number, since it is smaller than the sum of its proper divisors (7569576433564).

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

5111320040000 is an equidigital number, since it uses as much as digits as its factorization.

5111320040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65402 (or 65377 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 5111320040000 its reverse (400231115), we get a palindrome (5111720271115).

The spelling of 5111320040000 in words is "five trillion, one hundred eleven billion, three hundred twenty million, forty thousand".