5145111431240 has 128 divisors (see below), whose sum is σ = 13065697872000. Its totient is φ = 1806253209600.

The previous prime is 5145111431197. The next prime is 5145111431281. The reversal of 5145111431240 is 421341115415.

It is a junction number, because it is equal to n+sod(n) for n = 5145111431197 and 5145111431206.

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, 230804495 + ... + 230826785.

It is an arithmetic number, because the mean of its divisors is an integer number (102075764625).

Almost surely, 2^{5145111431240} 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 5145111431240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6532848936000).

5145111431240 is an abundant number, since it is smaller than the sum of its proper divisors (7920586440760).

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

5145111431240 is a wasteful number, since it uses less digits than its factorization.

5145111431240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40431 (or 40427 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 5145111431240 its reverse (421341115415), we get a palindrome (5566452546655).

The spelling of 5145111431240 in words is "five trillion, one hundred forty-five billion, one hundred eleven million, four hundred thirty-one thousand, two hundred forty".