20043232145 has 8 divisors (see below), whose sum is σ = 25317767040. Its totient is φ = 15190660080.

The previous prime is 20043232133. The next prime is 20043232159. The reversal of 20043232145 is 54123234002.

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

It is not a de Polignac number, because 20043232145 - 2⁶ = 20043232081 is a prime.

It is a super-2 number, since 2×20043232145² (a number of 21 digits) contains 22 as substring.

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, 105490601 + ... + 105490790.

It is an arithmetic number, because the mean of its divisors is an integer number (3164720880).

Almost surely, 2^20043232145 is an apocalyptic number.

It is an amenable number.

20043232145 is a deficient number, since it is larger than the sum of its proper divisors (5274534895).

20043232145 is a wasteful number, since it uses less digits than its factorization.

20043232145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210981415.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20043232145 its reverse (54123234002), we get a palindrome (74166466147).

The spelling of 20043232145 in words is "twenty billion, forty-three million, two hundred thirty-two thousand, one hundred forty-five".