20130553243 has 8 divisors (see below), whose sum is σ = 20605569776. Its totient is φ = 19655848800.

The previous prime is 20130553217. The next prime is 20130553277. The reversal of 20130553243 is 34235503102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130553243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130553843) 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, 55153 + ... + 208093.

It is an arithmetic number, because the mean of its divisors is an integer number (2575696222).

Almost surely, 2^20130553243 is an apocalyptic number.

20130553243 is a deficient number, since it is larger than the sum of its proper divisors (475016533).

20130553243 is a wasteful number, since it uses less digits than its factorization.

20130553243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156045.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 20130553243 in words is "twenty billion, one hundred thirty million, five hundred fifty-three thousand, two hundred forty-three".