5123598429221 has 4 divisors (see below), whose sum is σ = 5162709867744. Its totient is φ = 5084486990700.

The previous prime is 5123598429217. The next prime is 5123598429241. The reversal of 5123598429221 is 1229248953215.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5123598429221 - 2² = 5123598429217 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 (5123598429241) 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, 19555719065 + ... + 19555719326.

It is an arithmetic number, because the mean of its divisors is an integer number (1290677466936).

Almost surely, 2^{5123598429221} is an apocalyptic number.

It is an amenable number.

5123598429221 is a deficient number, since it is larger than the sum of its proper divisors (39111438523).

5123598429221 is a wasteful number, since it uses less digits than its factorization.

5123598429221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39111438522.

The product of its digits is 3110400, while the sum is 53.

The spelling of 5123598429221 in words is "five trillion, one hundred twenty-three billion, five hundred ninety-eight million, four hundred twenty-nine thousand, two hundred twenty-one".