30231231221011 has 4 divisors (see below), whose sum is σ = 32009538939912. Its totient is φ = 28452923502112.

The previous prime is 30231231221003. The next prime is 30231231221041. The reversal of 30231231221011 is 11012213213203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30231231221011 - 2³ = 30231231221003 is a prime.

It is a super-2 number, since 2×30231231221011² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30231231221041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889153859425 + ... + 889153859458.

It is an arithmetic number, because the mean of its divisors is an integer number (8002384734978).

Almost surely, 2^{30231231221011} is an apocalyptic number.

30231231221011 is a deficient number, since it is larger than the sum of its proper divisors (1778307718901).

30231231221011 is a wasteful number, since it uses less digits than its factorization.

30231231221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778307718900.

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

Adding to 30231231221011 its reverse (11012213213203), we get a palindrome (41243444434214).

The spelling of 30231231221011 in words is "thirty trillion, two hundred thirty-one billion, two hundred thirty-one million, two hundred twenty-one thousand, eleven".