5123021311 has 4 divisors (see below), whose sum is σ = 5345761392. Its totient is φ = 4900281232.

The previous prime is 5123021297. The next prime is 5123021317. The reversal of 5123021311 is 1131203215.

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 5123021311 - 2⁵ = 5123021279 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 (5123021317) 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, 111370006 + ... + 111370051.

It is an arithmetic number, because the mean of its divisors is an integer number (1336440348).

Almost surely, 2^5123021311 is an apocalyptic number.

5123021311 is a deficient number, since it is larger than the sum of its proper divisors (222740081).

5123021311 is a wasteful number, since it uses less digits than its factorization.

5123021311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222740080.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 5123021311 is about 71575.2842187860. The cubic root of 5123021311 is about 1723.8867070924.

Adding to 5123021311 its reverse (1131203215), we get a palindrome (6254224526).

The spelling of 5123021311 in words is "five billion, one hundred twenty-three million, twenty-one thousand, three hundred eleven".