30302131221312 has 224 divisors, whose sum is σ = 93243606451200. Its totient is φ = 8614631596032.

The previous prime is 30302131221287. The next prime is 30302131221377. The reversal of 30302131221312 is 21312213120303.

It is a super-2 number, since 2×30302131221312² (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, 9195762 + ... + 12048497.

Almost surely, 2^{30302131221312} is an apocalyptic number.

30302131221312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30302131221312 is an abundant number, since it is smaller than the sum of its proper divisors (62941475229888).

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

30302131221312 is a wasteful number, since it uses less digits than its factorization.

30302131221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21244333 (or 21244323 counting only the distinct ones).

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

Adding to 30302131221312 its reverse (21312213120303), we get a palindrome (51614344341615).

The spelling of 30302131221312 in words is "thirty trillion, three hundred two billion, one hundred thirty-one million, two hundred twenty-one thousand, three hundred twelve".