10321032987 has 16 divisors (see below), whose sum is σ = 15292680480. Its totient is φ = 6879671136.

The previous prime is 10321032947. The next prime is 10321032991. The reversal of 10321032987 is 78923012301.

10321032987 is a `hidden beast` number, since 1 + 0 + 321 + 0 + 329 + 8 + 7 = 666.

It is not a de Polignac number, because 10321032987 - 2¹² = 10321028891 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (10321032947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187693 + ... + 236369.

It is an arithmetic number, because the mean of its divisors is an integer number (955792530).

Almost surely, 2^10321032987 is an apocalyptic number.

10321032987 is a deficient number, since it is larger than the sum of its proper divisors (4971647493).

10321032987 is an equidigital number, since it uses as much as digits as its factorization.

10321032987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56539 (or 56533 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 10321032987 in words is "ten billion, three hundred twenty-one million, thirty-two thousand, nine hundred eighty-seven".