20032723057 has 8 divisors (see below), whose sum is σ = 20911332096. Its totient is φ = 19154749152.

The previous prime is 20032723013. The next prime is 20032723069. The reversal of 20032723057 is 75032723002.

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 20032723057 - 2¹⁵ = 20032690289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20032723157) 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, 93748 + ... + 221029.

It is an arithmetic number, because the mean of its divisors is an integer number (2613916512).

Almost surely, 2^20032723057 is an apocalyptic number.

It is an amenable number.

20032723057 is a deficient number, since it is larger than the sum of its proper divisors (878609039).

20032723057 is a wasteful number, since it uses less digits than its factorization.

20032723057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317567.

The product of its (nonzero) digits is 17640, while the sum is 31.

Subtracting 20032723057 from its reverse (75032723002), we obtain a palindrome (54999999945).

The spelling of 20032723057 in words is "twenty billion, thirty-two million, seven hundred twenty-three thousand, fifty-seven".