30102324021 has 48 divisors (see below), whose sum is σ = 55471004160. Its totient is φ = 15273891360.

The previous prime is 30102324001. The next prime is 30102324047. The reversal of 30102324021 is 12042320103.

30102324021 is a `hidden beast` number, since 30 + 1 + 0 + 232 + 402 + 1 = 666.

It is not a de Polignac number, because 30102324021 - 2²¹ = 30100226869 is a prime.

It is a super-2 number, since 2×30102324021² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30102323985 and 30102324003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102324001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 475291 + ... + 534888.

It is an arithmetic number, because the mean of its divisors is an integer number (1155645920).

Almost surely, 2^30102324021 is an apocalyptic number.

It is an amenable number.

30102324021 is a deficient number, since it is larger than the sum of its proper divisors (25368680139).

30102324021 is a wasteful number, since it uses less digits than its factorization.

30102324021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010246 (or 1010243 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30102324021 its reverse (12042320103), we get a palindrome (42144644124).

The spelling of 30102324021 in words is "thirty billion, one hundred two million, three hundred twenty-four thousand, twenty-one".