30111233112312 has 128 divisors (see below), whose sum is σ = 83460059596800. Its totient is φ = 8976260937600.

The previous prime is 30111233112271. The next prime is 30111233112343. The reversal of 30111233112312 is 21321133211103.

It is a super-2 number, since 2×30111233112312² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11919637 + ... + 14223227.

It is an arithmetic number, because the mean of its divisors is an integer number (652031715600).

Almost surely, 2^{30111233112312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30111233112312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41730029798400).

30111233112312 is an abundant number, since it is smaller than the sum of its proper divisors (53348826484488).

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

30111233112312 is a wasteful number, since it uses less digits than its factorization.

30111233112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304417 (or 2304413 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 30111233112312 its reverse (21321133211103), we get a palindrome (51432366323415).

The spelling of 30111233112312 in words is "thirty trillion, one hundred eleven billion, two hundred thirty-three million, one hundred twelve thousand, three hundred twelve".