30312203223123 has 32 divisors (see below), whose sum is σ = 45863938713600. Its totient is φ = 19777526736768.

The previous prime is 30312203223119. The next prime is 30312203223131. The reversal of 30312203223123 is 32132230221303.

30312203223123 is a `hidden beast` number, since 3 + 0 + 3 + 1 + 2 + 20 + 322 + 312 + 3 = 666.

It is not a de Polignac number, because 30312203223123 - 2² = 30312203223119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30312203223023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39969658 + ... + 40720976.

It is an arithmetic number, because the mean of its divisors is an integer number (1433248084800).

Almost surely, 2^{30312203223123} is an apocalyptic number.

30312203223123 is a deficient number, since it is larger than the sum of its proper divisors (15551735490477).

30312203223123 is a wasteful number, since it uses less digits than its factorization.

30312203223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783168 (or 783162 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 30312203223123 its reverse (32132230221303), we get a palindrome (62444433444426).

The spelling of 30312203223123 in words is "thirty trillion, three hundred twelve billion, two hundred three million, two hundred twenty-three thousand, one hundred twenty-three".