13120221203429 has 8 divisors (see below), whose sum is σ = 13129434316440. Its totient is φ = 13111011138816.

The previous prime is 13120221203393. The next prime is 13120221203443. The reversal of 13120221203429 is 92430212202131.

It can be written as a sum of positive squares in 4 ways, for example, as 3892326518404 + 9227894685025 = 1972898^2 + 3037745^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13120221203429 - 2¹⁶ = 13120221137893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13120221203395 and 13120221203404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120221293429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7883249 + ... + 9401385.

It is an arithmetic number, because the mean of its divisors is an integer number (1641179289555).

Almost surely, 2^{13120221203429} is an apocalyptic number.

It is an amenable number.

13120221203429 is a deficient number, since it is larger than the sum of its proper divisors (9213113011).

13120221203429 is a wasteful number, since it uses less digits than its factorization.

13120221203429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524199.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 13120221203429 in words is "thirteen trillion, one hundred twenty billion, two hundred twenty-one million, two hundred three thousand, four hundred twenty-nine".