20120502445 has 8 divisors (see below), whose sum is σ = 24187491936. Its totient is φ = 16067809296.

The previous prime is 20120502443. The next prime is 20120502481. The reversal of 20120502445 is 54420502102.

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 20120502445 - 2¹ = 20120502443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120502443) 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, 3570987 + ... + 3576616.

It is an arithmetic number, because the mean of its divisors is an integer number (3023436492).

Almost surely, 2^20120502445 is an apocalyptic number.

It is an amenable number.

20120502445 is a deficient number, since it is larger than the sum of its proper divisors (4066989491).

20120502445 is an equidigital number, since it uses as much as digits as its factorization.

20120502445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148171.

The product of its (nonzero) digits is 3200, while the sum is 25.

The spelling of 20120502445 in words is "twenty billion, one hundred twenty million, five hundred two thousand, four hundred forty-five".