30001120121231 has 32 divisors (see below), whose sum is σ = 34425050762880. Its totient is φ = 25611963111936.

The previous prime is 30001120121197. The next prime is 30001120121321. The reversal of 30001120121231 is 13212102110003.

It is a cyclic number.

It is not a de Polignac number, because 30001120121231 - 2¹⁰ = 30001120120207 is a prime.

It is a super-2 number, since 2×30001120121231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30001122121231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6111450005 + ... + 6111454913.

It is an arithmetic number, because the mean of its divisors is an integer number (1075782836340).

Almost surely, 2^{30001120121231} is an apocalyptic number.

30001120121231 is a deficient number, since it is larger than the sum of its proper divisors (4423930641649).

30001120121231 is a wasteful number, since it uses less digits than its factorization.

30001120121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8643.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 30001120121231 its reverse (13212102110003), we get a palindrome (43213222231234).

The spelling of 30001120121231 in words is "thirty trillion, one billion, one hundred twenty million, one hundred twenty-one thousand, two hundred thirty-one".