30231131220121 has 8 divisors (see below), whose sum is σ = 32661286467264. Its totient is φ = 27815930775120.

The previous prime is 30231131220113. The next prime is 30231131220149. The reversal of 30231131220121 is 12102213113203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30231131220121 - 2³ = 30231131220113 is a prime.

It is a super-3 number, since 3×30231131220121³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30231131220092 and 30231131220101.

It is not an unprimeable number, because it can be changed into a prime (30231131220421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3738696331 + ... + 3738704416.

It is an arithmetic number, because the mean of its divisors is an integer number (4082660808408).

Almost surely, 2^{30231131220121} is an apocalyptic number.

It is an amenable number.

30231131220121 is a deficient number, since it is larger than the sum of its proper divisors (2430155247143).

30231131220121 is a wasteful number, since it uses less digits than its factorization.

30231131220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7477401071.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30231131220121 its reverse (12102213113203), we get a palindrome (42333344333324).

The spelling of 30231131220121 in words is "thirty trillion, two hundred thirty-one billion, one hundred thirty-one million, two hundred twenty thousand, one hundred twenty-one".