20541041243 has 8 divisors (see below), whose sum is σ = 21262824000. Its totient is φ = 19820156608.

The previous prime is 20541041239. The next prime is 20541041267. The reversal of 20541041243 is 34214014502.

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

It is a cyclic number.

It is not a de Polignac number, because 20541041243 - 2² = 20541041239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20541641243) 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, 177818 + ... + 269631.

It is an arithmetic number, because the mean of its divisors is an integer number (2657853000).

Almost surely, 2^20541041243 is an apocalyptic number.

20541041243 is a deficient number, since it is larger than the sum of its proper divisors (721782757).

20541041243 is a wasteful number, since it uses less digits than its factorization.

20541041243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449061.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 20541041243 its reverse (34214014502), we get a palindrome (54755055745).

The spelling of 20541041243 in words is "twenty billion, five hundred forty-one million, forty-one thousand, two hundred forty-three".