120220111031 has 2 divisors, whose sum is σ = 120220111032. Its totient is φ = 120220111030.

The previous prime is 120220111021. The next prime is 120220111043. The reversal of 120220111031 is 130111022021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120220111031 is a prime.

It is a super-2 number, since 2×120220111031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120220110997 and 120220111015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120220111021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110055515 + 60110055516.

It is an arithmetic number, because the mean of its divisors is an integer number (60110055516).

Almost surely, 2^120220111031 is an apocalyptic number.

120220111031 is a deficient number, since it is larger than the sum of its proper divisors (1).

120220111031 is an equidigital number, since it uses as much as digits as its factorization.

120220111031 is an evil number, because the sum of its binary digits is even.

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

Adding to 120220111031 its reverse (130111022021), we get a palindrome (250331133052).

The spelling of 120220111031 in words is "one hundred twenty billion, two hundred twenty million, one hundred eleven thousand, thirty-one".