1231313030212 has 24 divisors (see below), whose sum is σ = 2160010167392. Its totient is φ = 614169000000.

The previous prime is 1231313030161. The next prime is 1231313030249. The reversal of 1231313030212 is 2120303131321.

It is a super-2 number, since 2×1231313030212² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2639587 + ... + 3070837.

Almost surely, 2^{1231313030212} is an apocalyptic number.

It is an amenable number.

1231313030212 is a deficient number, since it is larger than the sum of its proper divisors (928697137180).

1231313030212 is a wasteful number, since it uses less digits than its factorization.

1231313030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432979 (or 432977 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1231313030212 its reverse (2120303131321), we get a palindrome (3351616161533).

The spelling of 1231313030212 in words is "one trillion, two hundred thirty-one billion, three hundred thirteen million, thirty thousand, two hundred twelve".