5145120543021 has 8 divisors (see below), whose sum is σ = 6882506525664. Its totient is φ = 3418907461200.

The previous prime is 5145120543019. The next prime is 5145120543023. The reversal of 5145120543021 is 1203450215415.

It is an interprime number because it is at equal distance from previous prime (5145120543019) and next prime (5145120543023).

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

It is not a de Polignac number, because 5145120543021 - 2¹ = 5145120543019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145120543023) 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, 2793224130 + ... + 2793225971.

It is an arithmetic number, because the mean of its divisors is an integer number (860313315708).

Almost surely, 2^{5145120543021} is an apocalyptic number.

It is an amenable number.

5145120543021 is a deficient number, since it is larger than the sum of its proper divisors (1737385982643).

5145120543021 is a wasteful number, since it uses less digits than its factorization.

5145120543021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586450411.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 5145120543021 its reverse (1203450215415), we get a palindrome (6348570758436).

The spelling of 5145120543021 in words is "five trillion, one hundred forty-five billion, one hundred twenty million, five hundred forty-three thousand, twenty-one".