30123121330100 has 18 divisors (see below), whose sum is σ = 65367173286534. Its totient is φ = 12049248532000.

The previous prime is 30123121330069. The next prime is 30123121330109. The reversal of 30123121330100 is 103312132103.

It can be written as a sum of positive squares in 3 ways, for example, as 5881953975076 + 24241167355024 = 2425274^2 + 4923532^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123121330109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150615606551 + ... + 150615606750.

Almost surely, 2^{30123121330100} is an apocalyptic number.

It is an amenable number.

30123121330100 is an abundant number, since it is smaller than the sum of its proper divisors (35244051956434).

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

30123121330100 is a wasteful number, since it uses less digits than its factorization.

30123121330100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301231213315 (or 301231213308 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30123121330100 its reverse (103312132103), we get a palindrome (30226433462203).

The spelling of 30123121330100 in words is "thirty trillion, one hundred twenty-three billion, one hundred twenty-one million, three hundred thirty thousand, one hundred".