30102321987 has 12 divisors (see below), whose sum is σ = 44980481520. Its totient is φ = 19376207088.

The previous prime is 30102321947. The next prime is 30102321989. The reversal of 30102321987 is 78912320103.

It is not a de Polignac number, because 30102321987 - 2⁷ = 30102321859 is a prime.

It is a super-2 number, since 2×30102321987² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30102321989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57667023 + ... + 57667544.

It is an arithmetic number, because the mean of its divisors is an integer number (3748373460).

Almost surely, 2^30102321987 is an apocalyptic number.

30102321987 is a deficient number, since it is larger than the sum of its proper divisors (14878159533).

30102321987 is a wasteful number, since it uses less digits than its factorization.

30102321987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115334602 (or 115334599 counting only the distinct ones).

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

The spelling of 30102321987 in words is "thirty billion, one hundred two million, three hundred twenty-one thousand, nine hundred eighty-seven".