987231148021 has 8 divisors (see below), whose sum is σ = 1009021970304. Its totient is φ = 965473071840.

The previous prime is 987231148009. The next prime is 987231148031. The reversal of 987231148021 is 120841132789.

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 987231148021 - 2⁹ = 987231147509 is a prime.

It is a super-2 number, since 2×987231148021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987231148031) 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, 8125560 + ... + 8246161.

It is an arithmetic number, because the mean of its divisors is an integer number (126127746288).

Almost surely, 2^987231148021 is an apocalyptic number.

It is an amenable number.

987231148021 is a deficient number, since it is larger than the sum of its proper divisors (21790822283).

987231148021 is a wasteful number, since it uses less digits than its factorization.

987231148021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16373051.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 987231148021 in words is "nine hundred eighty-seven billion, two hundred thirty-one million, one hundred forty-eight thousand, twenty-one".