20327472043 has 4 divisors (see below), whose sum is σ = 20369212720. Its totient is φ = 20285731368.

The previous prime is 20327472023. The next prime is 20327472049. The reversal of 20327472043 is 34027472302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34027472302 = 2 ⋅17013736151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20327472043 is a prime.

It is a super-2 number, since 2×20327472043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20327472049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20869608 + ... + 20870581.

It is an arithmetic number, because the mean of its divisors is an integer number (5092303180).

Almost surely, 2^20327472043 is an apocalyptic number.

20327472043 is a deficient number, since it is larger than the sum of its proper divisors (41740677).

20327472043 is an equidigital number, since it uses as much as digits as its factorization.

20327472043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41740676.

The product of its (nonzero) digits is 56448, while the sum is 34.

The spelling of 20327472043 in words is "twenty billion, three hundred twenty-seven million, four hundred seventy-two thousand, forty-three".