131222021032123 has 24 divisors (see below), whose sum is σ = 152943399583920. Its totient is φ = 112256911952640.

The previous prime is 131222021032087. The next prime is 131222021032163. The reversal of 131222021032123 is 321230120222131.

It is not a de Polignac number, because 131222021032123 - 2¹⁷ = 131222020901051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131222021032163) 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, 1441653708 + ... + 1441744726.

It is an arithmetic number, because the mean of its divisors is an integer number (6372641649330).

Almost surely, 2^{131222021032123} is an apocalyptic number.

131222021032123 is a deficient number, since it is larger than the sum of its proper divisors (21721378551797).

131222021032123 is an equidigital number, since it uses as much as digits as its factorization.

131222021032123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148027 (or 148020 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131222021032123 its reverse (321230120222131), we get a palindrome (452452141254254).

The spelling of 131222021032123 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, twenty-one million, thirty-two thousand, one hundred twenty-three".