131122123 has 8 divisors (see below), whose sum is σ = 145388016. Its totient is φ = 117247200.

The previous prime is 131122111. The next prime is 131122129. The reversal of 131122123 is 321221131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131122123 - 2⁵ = 131122091 is a prime.

It is a super-2 number, since 2×131122123² = 34386022280054258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131122097 and 131122106.

It is not an unprimeable number, because it can be changed into a prime (131122129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97036 + ... + 98377.

It is an arithmetic number, because the mean of its divisors is an integer number (18173502).

Almost surely, 2^131122123 is an apocalyptic number.

131122123 is a deficient number, since it is larger than the sum of its proper divisors (14265893).

131122123 is a wasteful number, since it uses less digits than its factorization.

131122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195485.

The product of its digits is 72, while the sum is 16.

The square root of 131122123 is about 11450.8568675012. The cubic root of 131122123 is about 508.0330787872.

Adding to 131122123 its reverse (321221131), we get a palindrome (452343254).

The spelling of 131122123 in words is "one hundred thirty-one million, one hundred twenty-two thousand, one hundred twenty-three".