20130452243 has 4 divisors (see below), whose sum is σ = 21960493368. Its totient is φ = 18300411120.

The previous prime is 20130452231. The next prime is 20130452261. The reversal of 20130452243 is 34225403102.

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

It is a cyclic number.

It is not a de Polignac number, because 20130452243 - 2¹⁴ = 20130435859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20130452213) 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, 915020546 + ... + 915020567.

It is an arithmetic number, because the mean of its divisors is an integer number (5490123342).

Almost surely, 2^20130452243 is an apocalyptic number.

20130452243 is a deficient number, since it is larger than the sum of its proper divisors (1830041125).

20130452243 is a wasteful number, since it uses less digits than its factorization.

20130452243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830041124.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20130452243 its reverse (34225403102), we get a palindrome (54355855345).

The spelling of 20130452243 in words is "twenty billion, one hundred thirty million, four hundred fifty-two thousand, two hundred forty-three".