20051521141 has 8 divisors (see below), whose sum is σ = 20934506880. Its totient is φ = 19169467152.

The previous prime is 20051521013. The next prime is 20051521159. The reversal of 20051521141 is 14112515002.

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 20051521141 - 2⁷ = 20051521013 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 (20051521241) 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, 188770 + ... + 275203.

It is an arithmetic number, because the mean of its divisors is an integer number (2616813360).

Almost surely, 2^20051521141 is an apocalyptic number.

It is an amenable number.

20051521141 is a deficient number, since it is larger than the sum of its proper divisors (882985739).

20051521141 is a wasteful number, since it uses less digits than its factorization.

20051521141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465875.

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 20051521141 in words is "twenty billion, fifty-one million, five hundred twenty-one thousand, one hundred forty-one".