120131001031 has 4 divisors (see below), whose sum is σ = 120138075864. Its totient is φ = 120123926200.

The previous prime is 120131000963. The next prime is 120131001047. The reversal of 120131001031 is 130100131021.

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 120131001031 - 2⁹ = 120131000519 is a prime.

It is a super-2 number, since 2×120131001031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120131001091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3511885 + ... + 3545926.

It is an arithmetic number, because the mean of its divisors is an integer number (30034518966).

Almost surely, 2^120131001031 is an apocalyptic number.

120131001031 is a deficient number, since it is larger than the sum of its proper divisors (7074833).

120131001031 is an equidigital number, since it uses as much as digits as its factorization.

120131001031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074832.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 120131001031 its reverse (130100131021), we get a palindrome (250231132052).

The spelling of 120131001031 in words is "one hundred twenty billion, one hundred thirty-one million, one thousand, thirty-one".