30123000231 has 4 divisors (see below), whose sum is σ = 40164000312. Its totient is φ = 20082000152.

The previous prime is 30123000191. The next prime is 30123000241. The reversal of 30123000231 is 13200032103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13200032103 = 3 ⋅4400010701.

It is a cyclic number.

It is not a de Polignac number, because 30123000231 - 2¹⁷ = 30122869159 is a prime.

It is a super-2 number, since 2×30123000231² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30123000231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123000241) 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, 5020500036 + ... + 5020500041.

It is an arithmetic number, because the mean of its divisors is an integer number (10041000078).

Almost surely, 2^30123000231 is an apocalyptic number.

30123000231 is a deficient number, since it is larger than the sum of its proper divisors (10041000081).

30123000231 is a wasteful number, since it uses less digits than its factorization.

30123000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10041000080.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30123000231 its reverse (13200032103), we get a palindrome (43323032334).

The spelling of 30123000231 in words is "thirty billion, one hundred twenty-three million, two hundred thirty-one", and thus it is an aban number.