20541143451 has 8 divisors (see below), whose sum is σ = 27389335824. Its totient is φ = 13693523360.

The previous prime is 20541143417. The next prime is 20541143489. The reversal of 20541143451 is 15434114502.

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 20541143451 - 2⁹ = 20541142939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20541143851) 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, 50820 + ... + 208961.

It is an arithmetic number, because the mean of its divisors is an integer number (3423666978).

Almost surely, 2^20541143451 is an apocalyptic number.

20541143451 is a deficient number, since it is larger than the sum of its proper divisors (6848192373).

20541143451 is a wasteful number, since it uses less digits than its factorization.

20541143451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286141.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 20541143451 its reverse (15434114502), we get a palindrome (35975257953).

The spelling of 20541143451 in words is "twenty billion, five hundred forty-one million, one hundred forty-three thousand, four hundred fifty-one".