30131320123212 has 288 divisors, whose sum is σ = 88982102092800. Its totient is φ = 7767623001600.

The previous prime is 30131320123061. The next prime is 30131320123253. The reversal of 30131320123212 is 21232102313103.

It is a super-2 number, since 2×30131320123212² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2091428913 + ... + 2091443319.

Almost surely, 2^{30131320123212} 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 30131320123212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44491051046400).

30131320123212 is an abundant number, since it is smaller than the sum of its proper divisors (58850781969588).

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

30131320123212 is a wasteful number, since it uses less digits than its factorization.

30131320123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15973 (or 15960 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 30131320123212 its reverse (21232102313103), we get a palindrome (51363422436315).

The spelling of 30131320123212 in words is "thirty trillion, one hundred thirty-one billion, three hundred twenty million, one hundred twenty-three thousand, two hundred twelve".