30231131020321 has 16 divisors (see below), whose sum is σ = 38221616544768. Its totient is φ = 23224940600400.

The previous prime is 30231131020241. The next prime is 30231131020327. The reversal of 30231131020321 is 12302013113203.

It is not a de Polignac number, because 30231131020321 - 2¹⁹ = 30231130496033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231131020292 and 30231131020301.

It is not an unprimeable number, because it can be changed into a prime (30231131020327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2764868415 + ... + 2764879348.

It is an arithmetic number, because the mean of its divisors is an integer number (2388851034048).

Almost surely, 2^{30231131020321} is an apocalyptic number.

It is an amenable number.

30231131020321 is a deficient number, since it is larger than the sum of its proper divisors (7990485524447).

30231131020321 is a wasteful number, since it uses less digits than its factorization.

30231131020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5529747852.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30231131020321 its reverse (12302013113203), we get a palindrome (42533144133524).

The spelling of 30231131020321 in words is "thirty trillion, two hundred thirty-one billion, one hundred thirty-one million, twenty thousand, three hundred twenty-one".