30231122111213 has 4 divisors (see below), whose sum is σ = 31545518724768. Its totient is φ = 28916725497660.

The previous prime is 30231122111131. The next prime is 30231122111279. The reversal of 30231122111213 is 31211122113203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30231122111213 - 2²⁶ = 30231055002349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1314396613531 = 30231122111213 / (3 + 0 + 2 + 3 + 1 + 1 + 2 + 2 + 1 + 1 + 1 + 2 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231122119213) 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, 657198306743 + ... + 657198306788.

It is an arithmetic number, because the mean of its divisors is an integer number (7886379681192).

Almost surely, 2^{30231122111213} is an apocalyptic number.

It is an amenable number.

30231122111213 is a deficient number, since it is larger than the sum of its proper divisors (1314396613555).

30231122111213 is a wasteful number, since it uses less digits than its factorization.

30231122111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314396613554.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 30231122111213 its reverse (31211122113203), we get a palindrome (61442244224416).

The spelling of 30231122111213 in words is "thirty trillion, two hundred thirty-one billion, one hundred twenty-two million, one hundred eleven thousand, two hundred thirteen".