30111120231 has 8 divisors (see below), whose sum is σ = 40356182640. Its totient is φ = 19970068992.

The previous prime is 30111120217. The next prime is 30111120233. The reversal of 30111120231 is 13202111103.

It is a happy number.

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

It is not a de Polignac number, because 30111120231 - 2¹⁹ = 30110595943 is a prime.

It is a super-2 number, since 2×30111120231² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30111120231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111120233) 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, 26002116 + ... + 26003273.

It is an arithmetic number, because the mean of its divisors is an integer number (5044522830).

Almost surely, 2^30111120231 is an apocalyptic number.

30111120231 is a deficient number, since it is larger than the sum of its proper divisors (10245062409).

30111120231 is a wasteful number, since it uses less digits than its factorization.

30111120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52005585.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 30111120231 its reverse (13202111103), we get a palindrome (43313231334).

The spelling of 30111120231 in words is "thirty billion, one hundred eleven million, one hundred twenty thousand, two hundred thirty-one".