30123112312102 has 32 divisors (see below), whose sum is σ = 45331028308800. Its totient is φ = 15012846858240.

The previous prime is 30123112312079. The next prime is 30123112312303. The reversal of 30123112312102 is 20121321132103.

It is a super-2 number, since 2×30123112312102² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5082351063 + ... + 5082356989.

It is an arithmetic number, because the mean of its divisors is an integer number (1416594634650).

Almost surely, 2^{30123112312102} is an apocalyptic number.

30123112312102 is a deficient number, since it is larger than the sum of its proper divisors (15207915996698).

30123112312102 is a wasteful number, since it uses less digits than its factorization.

30123112312102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11136.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30123112312102 its reverse (20121321132103), we get a palindrome (50244433444205).

The spelling of 30123112312102 in words is "thirty trillion, one hundred twenty-three billion, one hundred twelve million, three hundred twelve thousand, one hundred two".