5430121511 has 4 divisors (see below), whose sum is σ = 5715917400. Its totient is φ = 5144325624.

The previous prime is 5430121507. The next prime is 5430121513. The reversal of 5430121511 is 1151210345.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5430121511 - 2² = 5430121507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5430121513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142897916 + ... + 142897953.

It is an arithmetic number, because the mean of its divisors is an integer number (1428979350).

Almost surely, 2^5430121511 is an apocalyptic number.

5430121511 is a deficient number, since it is larger than the sum of its proper divisors (285795889).

5430121511 is a wasteful number, since it uses less digits than its factorization.

5430121511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285795888.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 5430121511 is about 73689.3581937039. The cubic root of 5430121511 is about 1757.6666641891. Note that the first 5 decimals are identical.

Adding to 5430121511 its reverse (1151210345), we get a palindrome (6581331856).

The spelling of 5430121511 in words is "five billion, four hundred thirty million, one hundred twenty-one thousand, five hundred eleven".