30111121013123 has 4 divisors (see below), whose sum is σ = 30111145362480. Its totient is φ = 30111096663768.

The previous prime is 30111121013081. The next prime is 30111121013131. The reversal of 30111121013123 is 32131012111103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30111121013123 - 2²⁰ = 30111119964547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30111121013095 and 30111121013104.

It is not an unprimeable number, because it can be changed into a prime (30111121013023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10214540 + ... + 12828057.

It is an arithmetic number, because the mean of its divisors is an integer number (7527786340620).

Almost surely, 2^{30111121013123} is an apocalyptic number.

30111121013123 is a deficient number, since it is larger than the sum of its proper divisors (24349357).

30111121013123 is a wasteful number, since it uses less digits than its factorization.

30111121013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24349356.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 30111121013123 its reverse (32131012111103), we get a palindrome (62242133124226).

The spelling of 30111121013123 in words is "thirty trillion, one hundred eleven billion, one hundred twenty-one million, thirteen thousand, one hundred twenty-three".