120223231031 has 2 divisors, whose sum is σ = 120223231032. Its totient is φ = 120223231030.

The previous prime is 120223231027. The next prime is 120223231043. The reversal of 120223231031 is 130132322021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120223231031 - 2² = 120223231027 is a prime.

It is a super-2 number, since 2×120223231031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120223230994 and 120223231012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120223231081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60111615515 + 60111615516.

It is an arithmetic number, because the mean of its divisors is an integer number (60111615516).

Almost surely, 2^120223231031 is an apocalyptic number.

120223231031 is a deficient number, since it is larger than the sum of its proper divisors (1).

120223231031 is an equidigital number, since it uses as much as digits as its factorization.

120223231031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 120223231031 its reverse (130132322021), we get a palindrome (250355553052).

The spelling of 120223231031 in words is "one hundred twenty billion, two hundred twenty-three million, two hundred thirty-one thousand, thirty-one".