30312120002 has 16 divisors (see below), whose sum is σ = 46057546080. Its totient is φ = 14960186208.

The previous prime is 30312120001. The next prime is 30312120031. The reversal of 30312120002 is 20002121303.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30312120001) 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, 40568 + ... + 249539.

It is an arithmetic number, because the mean of its divisors is an integer number (2878596630).

Almost surely, 2^30312120002 is an apocalyptic number.

30312120002 is a deficient number, since it is larger than the sum of its proper divisors (15745426078).

30312120002 is a wasteful number, since it uses less digits than its factorization.

30312120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290785.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30312120002 its reverse (20002121303), we get a palindrome (50314241305).

The spelling of 30312120002 in words is "thirty billion, three hundred twelve million, one hundred twenty thousand, two".