13242121043 has 4 divisors (see below), whose sum is σ = 13244030880. Its totient is φ = 13240211208.

The previous prime is 13242121033. The next prime is 13242121051. The reversal of 13242121043 is 34012124231.

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 13242121043 - 2³⁰ = 12168379219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13242121033) 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, 944480 + ... + 958397.

It is an arithmetic number, because the mean of its divisors is an integer number (3311007720).

Almost surely, 2^13242121043 is an apocalyptic number.

13242121043 is a deficient number, since it is larger than the sum of its proper divisors (1909837).

13242121043 is an equidigital number, since it uses as much as digits as its factorization.

13242121043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909836.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13242121043 its reverse (34012124231), we get a palindrome (47254245274).

The spelling of 13242121043 in words is "thirteen billion, two hundred forty-two million, one hundred twenty-one thousand, forty-three".