20041243151 has 4 divisors (see below), whose sum is σ = 20044155000. Its totient is φ = 20038331304.

The previous prime is 20041243147. The next prime is 20041243153. The reversal of 20041243151 is 15134214002.

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 20041243151 - 2² = 20041243147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20041243153) 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, 1445576 + ... + 1459373.

It is an arithmetic number, because the mean of its divisors is an integer number (5011038750).

Almost surely, 2^20041243151 is an apocalyptic number.

20041243151 is a deficient number, since it is larger than the sum of its proper divisors (2911849).

20041243151 is an equidigital number, since it uses as much as digits as its factorization.

20041243151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911848.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 20041243151 its reverse (15134214002), we get a palindrome (35175457153).

The spelling of 20041243151 in words is "twenty billion, forty-one million, two hundred forty-three thousand, one hundred fifty-one".