30212300123 has 4 divisors (see below), whose sum is σ = 30230939808. Its totient is φ = 30193660440.

The previous prime is 30212300119. The next prime is 30212300143. The reversal of 30212300123 is 32100321203.

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 30212300123 - 2² = 30212300119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30212300143) 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, 9317411 + ... + 9320652.

It is an arithmetic number, because the mean of its divisors is an integer number (7557734952).

Almost surely, 2^30212300123 is an apocalyptic number.

30212300123 is a deficient number, since it is larger than the sum of its proper divisors (18639685).

30212300123 is a wasteful number, since it uses less digits than its factorization.

30212300123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18639684.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30212300123 its reverse (32100321203), we get a palindrome (62312621326).

The spelling of 30212300123 in words is "thirty billion, two hundred twelve million, three hundred thousand, one hundred twenty-three".