32020012987 has 4 divisors (see below), whose sum is σ = 32405796360. Its totient is φ = 31634229616.

The previous prime is 32020012967. The next prime is 32020013033. The reversal of 32020012987 is 78921002023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32020012987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32020012957) 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, 192891562 + ... + 192891727.

It is an arithmetic number, because the mean of its divisors is an integer number (8101449090).

Almost surely, 2^32020012987 is an apocalyptic number.

32020012987 is a deficient number, since it is larger than the sum of its proper divisors (385783373).

32020012987 is an equidigital number, since it uses as much as digits as its factorization.

32020012987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385783372.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 32020012987 in words is "thirty-two billion, twenty million, twelve thousand, nine hundred eighty-seven".