30112131012 has 24 divisors (see below), whose sum is σ = 71413470912. Its totient is φ = 9872829600.

The previous prime is 30112130987. The next prime is 30112131017. The reversal of 30112131012 is 21013121103.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30112130982 and 30112131000.

It is not an unprimeable number, because it can be changed into a prime (30112131017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20567664 + ... + 20569127.

It is an arithmetic number, because the mean of its divisors is an integer number (2975561288).

Almost surely, 2^30112131012 is an apocalyptic number.

It is an amenable number.

30112131012 is an abundant number, since it is smaller than the sum of its proper divisors (41301339900).

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

30112131012 is a wasteful number, since it uses less digits than its factorization.

30112131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41136859 (or 41136857 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 30112131012 its reverse (21013121103), we get a palindrome (51125252115).

Subtracting from 30112131012 its reverse (21013121103), we obtain a palindrome (9099009909).

The spelling of 30112131012 in words is "thirty billion, one hundred twelve million, one hundred thirty-one thousand, twelve".