20210531141 has 8 divisors (see below), whose sum is σ = 21491232984. Its totient is φ = 18940034560.

The previous prime is 20210531123. The next prime is 20210531161. The reversal of 20210531141 is 14113501202.

It can be written as a sum of positive squares in 4 ways, for example, as 3484540900 + 16725990241 = 59030^2 + 129329^2 .

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

It is not a de Polignac number, because 20210531141 - 2³⁰ = 19136789317 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 (20210531101) 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, 2547230 + ... + 2555151.

It is an arithmetic number, because the mean of its divisors is an integer number (2686404123).

Almost surely, 2^20210531141 is an apocalyptic number.

It is an amenable number.

20210531141 is a deficient number, since it is larger than the sum of its proper divisors (1280701843).

20210531141 is a wasteful number, since it uses less digits than its factorization.

20210531141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5102631.

The product of its (nonzero) digits is 240, while the sum is 20.

The spelling of 20210531141 in words is "twenty billion, two hundred ten million, five hundred thirty-one thousand, one hundred forty-one".