30123210101012 has 48 divisors (see below), whose sum is σ = 61369490663040. Its totient is φ = 12670017408000.

The previous prime is 30123210101009. The next prime is 30123210101051. The reversal of 30123210101012 is 21010101232103.

It is a super-2 number, since 2×30123210101012² (a number of 28 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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, 14177189 + ... + 16162892.

It is an arithmetic number, because the mean of its divisors is an integer number (1278531055480).

Almost surely, 2^{30123210101012} is an apocalyptic number.

It is an amenable number.

30123210101012 is an abundant number, since it is smaller than the sum of its proper divisors (31246280562028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30123210101012 is a wasteful number, since it uses less digits than its factorization.

30123210101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30340752 (or 30340750 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 30123210101012 its reverse (21010101232103), we get a palindrome (51133311333115).

The spelling of 30123210101012 in words is "thirty trillion, one hundred twenty-three billion, two hundred ten million, one hundred one thousand, twelve".