124045215213 has 4 divisors (see below), whose sum is σ = 165393620288. Its totient is φ = 82696810140.

The previous prime is 124045215211. The next prime is 124045215233. The reversal of 124045215213 is 312512540421.

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 not a de Polignac number, because 124045215213 - 2¹ = 124045215211 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 (124045215211) 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, 20674202533 + ... + 20674202538.

It is an arithmetic number, because the mean of its divisors is an integer number (41348405072).

Almost surely, 2^124045215213 is an apocalyptic number.

It is an amenable number.

124045215213 is a deficient number, since it is larger than the sum of its proper divisors (41348405075).

124045215213 is an equidigital number, since it uses as much as digits as its factorization.

124045215213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41348405074.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 124045215213 its reverse (312512540421), we get a palindrome (436557755634).

The spelling of 124045215213 in words is "one hundred twenty-four billion, forty-five million, two hundred fifteen thousand, two hundred thirteen".