30312343144120 has 32 divisors (see below), whose sum is σ = 68202947736000. Its totient is φ = 12124906028928.

The previous prime is 30312343144093. The next prime is 30312343144123. The reversal of 30312343144120 is 2144134321303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312343144123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20683462 + ... + 22100458.

It is an arithmetic number, because the mean of its divisors is an integer number (2131342116750).

Almost surely, 2^{30312343144120} is an apocalyptic number.

It is an amenable number.

30312343144120 is an abundant number, since it is smaller than the sum of its proper divisors (37890604591880).

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

30312343144120 is a wasteful number, since it uses less digits than its factorization.

30312343144120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951807 (or 1951803 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 30312343144120 its reverse (2144134321303), we get a palindrome (32456477465423).

The spelling of 30312343144120 in words is "thirty trillion, three hundred twelve billion, three hundred forty-three million, one hundred forty-four thousand, one hundred twenty".