2124430421213 has 4 divisors (see below), whose sum is σ = 2129781631740. Its totient is φ = 2119079210688.

The previous prime is 2124430421203. The next prime is 2124430421221. The reversal of 2124430421213 is 3121240344212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1178349328324 + 946081092889 = 1085518^2 + 972667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2124430421213 is a prime.

It is a super-2 number, since 2×2124430421213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124430421203) 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, 2675604668 + ... + 2675605461.

It is an arithmetic number, because the mean of its divisors is an integer number (532445407935).

Almost surely, 2^{2124430421213} is an apocalyptic number.

It is an amenable number.

2124430421213 is a deficient number, since it is larger than the sum of its proper divisors (5351210527).

2124430421213 is an equidigital number, since it uses as much as digits as its factorization.

2124430421213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351210526.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 2124430421213 its reverse (3121240344212), we get a palindrome (5245670765425).

The spelling of 2124430421213 in words is "two trillion, one hundred twenty-four billion, four hundred thirty million, four hundred twenty-one thousand, two hundred thirteen".