30123102220032 has 144 divisors (see below), whose sum is σ = 80974320739200. Its totient is φ = 9940492800000.

The previous prime is 30123102219971. The next prime is 30123102220037. The reversal of 30123102220032 is 23002220132103.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30123102219990 and 30123102220008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123102220037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950269719 + ... + 950301417.

It is an arithmetic number, because the mean of its divisors is an integer number (562321671800).

Almost surely, 2^{30123102220032} is an apocalyptic number.

30123102220032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30123102220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40487160369600).

30123102220032 is an abundant number, since it is smaller than the sum of its proper divisors (50851218519168).

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

30123102220032 is a wasteful number, since it uses less digits than its factorization.

30123102220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44070 (or 44056 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30123102220032 its reverse (23002220132103), we get a palindrome (53125322352135).

The spelling of 30123102220032 in words is "thirty trillion, one hundred twenty-three billion, one hundred two million, two hundred twenty thousand, thirty-two".