30742340312212 has 12 divisors (see below), whose sum is σ = 53799390056916. Its totient is φ = 15371086010240.

The previous prime is 30742340312147. The next prime is 30742340312213. The reversal of 30742340312212 is 21221304324703.

30742340312212 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30609375065476 + 132965246736 = 5532574^2 + 364644^2 .

It is a super-3 number, since 3×30742340312212³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30742340312213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20210839 + ... + 21678622.

It is an arithmetic number, because the mean of its divisors is an integer number (4483282504743).

Almost surely, 2^{30742340312212} is an apocalyptic number.

It is an amenable number.

30742340312212 is a deficient number, since it is larger than the sum of its proper divisors (23057049744704).

30742340312212 is a wasteful number, since it uses less digits than its factorization.

30742340312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42072938 (or 42072936 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

Adding to 30742340312212 its reverse (21221304324703), we get a palindrome (51963644636915).

The spelling of 30742340312212 in words is "thirty trillion, seven hundred forty-two billion, three hundred forty million, three hundred twelve thousand, two hundred twelve".