30102121232 has 20 divisors (see below), whose sum is σ = 58325945100. Its totient is φ = 15050264448.

The previous prime is 30102121229. The next prime is 30102121237. The reversal of 30102121232 is 23212120103.

It can be written as a sum of positive squares in 2 ways, for example, as 6853190656 + 23248930576 = 82784^2 + 152476^2 .

It is a super-2 number, since 2×30102121232² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30102121232.

It is not an unprimeable number, because it can be changed into a prime (30102121237) 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, 368894 + ... + 443042.

It is an arithmetic number, because the mean of its divisors is an integer number (2916297255).

Almost surely, 2^30102121232 is an apocalyptic number.

It is an amenable number.

30102121232 is a deficient number, since it is larger than the sum of its proper divisors (28223823868).

30102121232 is a wasteful number, since it uses less digits than its factorization.

30102121232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99530 (or 99524 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30102121232 its reverse (23212120103), we get a palindrome (53314241335).

The spelling of 30102121232 in words is "thirty billion, one hundred two million, one hundred twenty-one thousand, two hundred thirty-two".