20210531134 has 16 divisors (see below), whose sum is σ = 30452500800. Its totient is φ = 10059757344.

The previous prime is 20210531123. The next prime is 20210531161. The reversal of 20210531134 is 43113501202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699772 + ... + 728080.

It is an arithmetic number, because the mean of its divisors is an integer number (1903281300).

Almost surely, 2^20210531134 is an apocalyptic number.

20210531134 is a deficient number, since it is larger than the sum of its proper divisors (10241969666).

20210531134 is a wasteful number, since it uses less digits than its factorization.

20210531134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29907.

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 20210531134 in words is "twenty billion, two hundred ten million, five hundred thirty-one thousand, one hundred thirty-four".