30201312 has 24 divisors (see below), whose sum is σ = 79278696. Its totient is φ = 10067072.

The previous prime is 30201271. The next prime is 30201319. The reversal of 30201312 is 21310203.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157203 + ... + 157394.

It is an arithmetic number, because the mean of its divisors is an integer number (3303279).

Almost surely, 2^30201312 is an apocalyptic number.

30201312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30201312 is an abundant number, since it is smaller than the sum of its proper divisors (49077384).

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

30201312 is a wasteful number, since it uses less digits than its factorization.

30201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314610 (or 314602 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30201312 is about 5495.5720357393. The cubic root of 30201312 is about 311.4167274986.

Adding to 30201312 its reverse (21310203), we get a palindrome (51511515).

The spelling of 30201312 in words is "thirty million, two hundred one thousand, three hundred twelve".