30000031313212 has 12 divisors (see below), whose sum is σ = 52521404979960. Its totient is φ = 14993915604656.

The previous prime is 30000031313201. The next prime is 30000031313249. The reversal of 30000031313212 is 21231313000003.

It is a self number, because there is not a number n which added to its sum of digits gives 30000031313212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1525001923 + ... + 1525021594.

It is an arithmetic number, because the mean of its divisors is an integer number (4376783748330).

Almost surely, 2^{30000031313212} is an apocalyptic number.

It is an amenable number.

30000031313212 is a deficient number, since it is larger than the sum of its proper divisors (22521373666748).

30000031313212 is a wasteful number, since it uses less digits than its factorization.

30000031313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050025980 (or 3050025978 counting only the distinct ones).

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

Adding to 30000031313212 its reverse (21231313000003), we get a palindrome (51231344313215).

The spelling of 30000031313212 in words is "thirty trillion, thirty-one million, three hundred thirteen thousand, two hundred twelve".