20540032803 has 6 divisors (see below), whose sum is σ = 29668936284. Its totient is φ = 13693355196.

The previous prime is 20540032801. The next prime is 20540032813. The reversal of 20540032803 is 30823004502.

It is not a de Polignac number, because 20540032803 - 2¹ = 20540032801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20540032801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1141112925 + ... + 1141112942.

It is an arithmetic number, because the mean of its divisors is an integer number (4944822714).

Almost surely, 2^20540032803 is an apocalyptic number.

20540032803 is a deficient number, since it is larger than the sum of its proper divisors (9128903481).

20540032803 is a wasteful number, since it uses less digits than its factorization.

20540032803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282225873 (or 2282225870 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 20540032803 in words is "twenty billion, five hundred forty million, thirty-two thousand, eight hundred three".