30123123100 has 72 divisors (see below), whose sum is σ = 74729223968. Its totient is φ = 10324627200.

The previous prime is 30123123097. The next prime is 30123123101. The reversal of 30123123100 is 132132103.

It is a super-2 number, since 2×30123123100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123123101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3364630 + ... + 3373570.

Almost surely, 2^30123123100 is an apocalyptic number.

It is an amenable number.

30123123100 is an abundant number, since it is smaller than the sum of its proper divisors (44606100868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30123123100 is a wasteful number, since it uses less digits than its factorization.

30123123100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13775 (or 13768 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30123123100 its reverse (132132103), we get a palindrome (30255255203).

The spelling of 30123123100 in words is "thirty billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred".