120111202031 has 2 divisors, whose sum is σ = 120111202032. Its totient is φ = 120111202030.

The previous prime is 120111202027. The next prime is 120111202063. The reversal of 120111202031 is 130202111021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120111202031 - 2² = 120111202027 is a prime.

It is a super-2 number, since 2×120111202031² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 120111201997 and 120111202015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120111202021) 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 as a sum of consecutive naturals, namely, 60055601015 + 60055601016.

It is an arithmetic number, because the mean of its divisors is an integer number (60055601016).

Almost surely, 2^120111202031 is an apocalyptic number.

120111202031 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111202031 is an equidigital number, since it uses as much as digits as its factorization.

120111202031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 120111202031 its reverse (130202111021), we get a palindrome (250313313052).

The spelling of 120111202031 in words is "one hundred twenty billion, one hundred eleven million, two hundred two thousand, thirty-one".