120113311231 has 4 divisors (see below), whose sum is σ = 120422086200. Its totient is φ = 119804536264.

The previous prime is 120113311229. The next prime is 120113311243. The reversal of 120113311231 is 132113311021.

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 120113311231 - 2¹ = 120113311229 is a prime.

It is a super-2 number, since 2×120113311231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120113311199 and 120113311208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120113311291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154386901 + ... + 154387678.

It is an arithmetic number, because the mean of its divisors is an integer number (30105521550).

Almost surely, 2^120113311231 is an apocalyptic number.

120113311231 is a deficient number, since it is larger than the sum of its proper divisors (308774969).

120113311231 is an equidigital number, since it uses as much as digits as its factorization.

120113311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308774968.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 120113311231 its reverse (132113311021), we get a palindrome (252226622252).

The spelling of 120113311231 in words is "one hundred twenty billion, one hundred thirteen million, three hundred eleven thousand, two hundred thirty-one".