120011331231 has 24 divisors (see below), whose sum is σ = 189607791360. Its totient is φ = 72542206800.

The previous prime is 120011331211. The next prime is 120011331257. The reversal of 120011331231 is 132133110021.

It is not a de Polignac number, because 120011331231 - 2²² = 120007136927 is a prime.

It is a super-2 number, since 2×120011331231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011331211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1561735 + ... + 1636776.

It is an arithmetic number, because the mean of its divisors is an integer number (7900324640).

Almost surely, 2^120011331231 is an apocalyptic number.

120011331231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120011331231 is a deficient number, since it is larger than the sum of its proper divisors (69596460129).

120011331231 is a wasteful number, since it uses less digits than its factorization.

120011331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198907 (or 3198904 counting only the distinct ones).

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

Adding to 120011331231 its reverse (132133110021), we get a palindrome (252144441252).

The spelling of 120011331231 in words is "one hundred twenty billion, eleven million, three hundred thirty-one thousand, two hundred thirty-one".