30023131101312 has 128 divisors (see below), whose sum is σ = 83221285104000. Its totient is φ = 9572017618944.

The previous prime is 30023131101311. The next prime is 30023131101329. The reversal of 30023131101312 is 21310113132003.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×30023131101312² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30023131101311) 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, 161435514 + ... + 161621382.

It is an arithmetic number, because the mean of its divisors is an integer number (650166289875).

Almost surely, 2^{30023131101312} is an apocalyptic number.

30023131101312 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 30023131101312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41610642552000).

30023131101312 is an abundant number, since it is smaller than the sum of its proper divisors (53198154002688).

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

30023131101312 is a wasteful number, since it uses less digits than its factorization.

30023131101312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204198 (or 204186 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 30023131101312 its reverse (21310113132003), we get a palindrome (51333244233315).

The spelling of 30023131101312 in words is "thirty trillion, twenty-three billion, one hundred thirty-one million, one hundred one thousand, three hundred twelve".