30121202312123 has 8 divisors (see below), whose sum is σ = 32439262044000. Its totient is φ = 27803291747328.

The previous prime is 30121202312077. The next prime is 30121202312141. The reversal of 30121202312123 is 32121320212103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30121202312123 - 2⁸ = 30121202311867 is a prime.

It is a super-2 number, since 2×30121202312123² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30121202314123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36872198 + ... + 37680251.

It is an arithmetic number, because the mean of its divisors is an integer number (4054907755500).

Almost surely, 2^{30121202312123} is an apocalyptic number.

30121202312123 is a deficient number, since it is larger than the sum of its proper divisors (2318059731877).

30121202312123 is a wasteful number, since it uses less digits than its factorization.

30121202312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74583541.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 30121202312123 its reverse (32121320212103), we get a palindrome (62242522524226).

The spelling of 30121202312123 in words is "thirty trillion, one hundred twenty-one billion, two hundred two million, three hundred twelve thousand, one hundred twenty-three".