5131220001140 has 24 divisors (see below), whose sum is σ = 10776015510120. Its totient is φ = 2052401618048.

The previous prime is 5131220001097. The next prime is 5131220001217. The reversal of 5131220001140 is 411000221315.

It can be written as a sum of positive squares in 4 ways, for example, as 953431167844 + 4177788833296 = 976438^2 + 2043964^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4910735 + ... + 5863254.

It is an arithmetic number, because the mean of its divisors is an integer number (449000646255).

Almost surely, 2^{5131220001140} is an apocalyptic number.

It is an amenable number.

5131220001140 is an abundant number, since it is smaller than the sum of its proper divisors (5644795508980).

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

5131220001140 is a wasteful number, since it uses less digits than its factorization.

5131220001140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10797811 (or 10797809 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 5131220001140 its reverse (411000221315), we get a palindrome (5542220222455).

The spelling of 5131220001140 in words is "five trillion, one hundred thirty-one billion, two hundred twenty million, one thousand, one hundred forty".