30100123000 has 128 divisors (see below), whose sum is σ = 77366016000. Its totient is φ = 10910275200.

The previous prime is 30100122991. The next prime is 30100123021. The reversal of 30100123000 is 32100103.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 402561 + ... + 471439.

It is an arithmetic number, because the mean of its divisors is an integer number (604422000).

Almost surely, 2^30100123000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30100123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38683008000).

30100123000 is an abundant number, since it is smaller than the sum of its proper divisors (47265893000).

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

30100123000 is a wasteful number, since it uses less digits than its factorization.

30100123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68942 (or 68928 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 30100123000 its reverse (32100103), we get a palindrome (30132223103).

The spelling of 30100123000 in words is "thirty billion, one hundred million, one hundred twenty-three thousand".