120111102231 has 4 divisors (see below), whose sum is σ = 160148136312. Its totient is φ = 80074068152.

The previous prime is 120111102227. The next prime is 120111102277. The reversal of 120111102231 is 132201111021.

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 120111102231 - 2² = 120111102227 is a prime.

It is a super-2 number, since 2×120111102231² (a number of 23 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 120111102231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111102281) 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, 20018517036 + ... + 20018517041.

It is an arithmetic number, because the mean of its divisors is an integer number (40037034078).

Almost surely, 2^120111102231 is an apocalyptic number.

120111102231 is a deficient number, since it is larger than the sum of its proper divisors (40037034081).

120111102231 is an equidigital number, since it uses as much as digits as its factorization.

120111102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40037034080.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 120111102231 its reverse (132201111021), we get a palindrome (252312213252).

The spelling of 120111102231 in words is "one hundred twenty billion, one hundred eleven million, one hundred two thousand, two hundred thirty-one".