15455223041213 has 4 divisors (see below), whose sum is σ = 15459650206848. Its totient is φ = 15450795875580.

The previous prime is 15455223041189. The next prime is 15455223041257. The reversal of 15455223041213 is 31214032255451.

15455223041213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15455223041213 - 2²² = 15455218846909 is a prime.

It is a super-2 number, since 2×15455223041213² (a number of 27 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 (15455223641213) 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, 2213577581 + ... + 2213584562.

It is an arithmetic number, because the mean of its divisors is an integer number (3864912551712).

Almost surely, 2^{15455223041213} is an apocalyptic number.

It is an amenable number.

15455223041213 is a deficient number, since it is larger than the sum of its proper divisors (4427165635).

15455223041213 is an equidigital number, since it uses as much as digits as its factorization.

15455223041213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427165634.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 15455223041213 its reverse (31214032255451), we get a palindrome (46669255296664).

The spelling of 15455223041213 in words is "fifteen trillion, four hundred fifty-five billion, two hundred twenty-three million, forty-one thousand, two hundred thirteen".