30313213012 has 6 divisors (see below), whose sum is σ = 53048122778. Its totient is φ = 15156606504.

The previous prime is 30313212977. The next prime is 30313213027. The reversal of 30313213012 is 21031231303.

It can be written as a sum of positive squares in only one way, i.e., 24889479696 + 5423733316 = 157764^2 + 73646^2 .

It is a super-2 number, since 2×30313213012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3789151623 + ... + 3789151630.

Almost surely, 2^30313213012 is an apocalyptic number.

It is an amenable number.

30313213012 is a deficient number, since it is larger than the sum of its proper divisors (22734909766).

30313213012 is a wasteful number, since it uses less digits than its factorization.

30313213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578303257 (or 7578303255 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30313213012 its reverse (21031231303), we get a palindrome (51344444315).

The spelling of 30313213012 in words is "thirty billion, three hundred thirteen million, two hundred thirteen thousand, twelve".