5111212215523 has 8 divisors (see below), whose sum is σ = 5410425121200. Its totient is φ = 4820196923808.

The previous prime is 5111212215491. The next prime is 5111212215533. The reversal of 5111212215523 is 3255122121115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5111212215523 - 2⁵ = 5111212215491 is a prime.

It is a super-2 number, since 2×5111212215523² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5111212215533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049402208 + ... + 2049404701.

It is an arithmetic number, because the mean of its divisors is an integer number (676303140150).

Almost surely, 2^{5111212215523} is an apocalyptic number.

5111212215523 is a deficient number, since it is larger than the sum of its proper divisors (299212905677).

5111212215523 is a wasteful number, since it uses less digits than its factorization.

5111212215523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098806981.

The product of its digits is 6000, while the sum is 31.

Adding to 5111212215523 its reverse (3255122121115), we get a palindrome (8366334336638).

The spelling of 5111212215523 in words is "five trillion, one hundred eleven billion, two hundred twelve million, two hundred fifteen thousand, five hundred twenty-three".