30111132231 has 12 divisors (see below), whose sum is σ = 43584665280. Its totient is φ = 20032176960.

The previous prime is 30111132221. The next prime is 30111132251. The reversal of 30111132231 is 13223111103.

30111132231 is a `hidden beast` number, since 301 + 1 + 1 + 132 + 231 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-30111132231 is a prime.

It is a super-2 number, since 2×30111132231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111132221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3488050 + ... + 3496671.

It is an arithmetic number, because the mean of its divisors is an integer number (3632055440).

Almost surely, 2^30111132231 is an apocalyptic number.

30111132231 is a deficient number, since it is larger than the sum of its proper divisors (13473533049).

30111132231 is a wasteful number, since it uses less digits than its factorization.

30111132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6985206 (or 6985203 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30111132231 its reverse (13223111103), we get a palindrome (43334243334).

The spelling of 30111132231 in words is "thirty billion, one hundred eleven million, one hundred thirty-two thousand, two hundred thirty-one".