30023200131021 has 40 divisors (see below), whose sum is σ = 45062590874400. Its totient is φ = 19920509154720.

The previous prime is 30023200131011. The next prime is 30023200131037. The reversal of 30023200131021 is 12013100232003.

30023200131021 is a `hidden beast` number, since 30 + 0 + 2 + 320 + 0 + 1 + 310 + 2 + 1 = 666.

It is not a de Polignac number, because 30023200131021 - 2³¹ = 30021052647373 is a prime.

It is a super-2 number, since 2×30023200131021² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30023200130985 and 30023200131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023200131011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20447590 + ... + 21866648.

It is an arithmetic number, because the mean of its divisors is an integer number (1126564771860).

Almost surely, 2^{30023200131021} is an apocalyptic number.

It is an amenable number.

30023200131021 is a deficient number, since it is larger than the sum of its proper divisors (15039390743379).

30023200131021 is a wasteful number, since it uses less digits than its factorization.

30023200131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420311 (or 1420302 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30023200131021 its reverse (12013100232003), we get a palindrome (42036300363024).

The spelling of 30023200131021 in words is "thirty trillion, twenty-three billion, two hundred million, one hundred thirty-one thousand, twenty-one".