30312301121123 has 24 divisors (see below), whose sum is σ = 36826314854400. Its totient is φ = 24830728414800.

The previous prime is 30312301121117. The next prime is 30312301121173. The reversal of 30312301121123 is 32112110321303.

It is not a de Polignac number, because 30312301121123 - 2¹² = 30312301117027 is a prime.

It is a super-2 number, since 2×30312301121123² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30312301121173) 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 23 ways as a sum of consecutive naturals, for example, 10386773 + ... + 12981126.

It is an arithmetic number, because the mean of its divisors is an integer number (1534429785600).

Almost surely, 2^{30312301121123} is an apocalyptic number.

30312301121123 is a deficient number, since it is larger than the sum of its proper divisors (6514013733277).

30312301121123 is a wasteful number, since it uses less digits than its factorization.

30312301121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23369087 (or 23369080 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 30312301121123 its reverse (32112110321303), we get a palindrome (62424411442426).

The spelling of 30312301121123 in words is "thirty trillion, three hundred twelve billion, three hundred one million, one hundred twenty-one thousand, one hundred twenty-three".