131210123 has 16 divisors (see below), whose sum is σ = 148577760. Its totient is φ = 114777600.

The previous prime is 131210113. The next prime is 131210137. The reversal of 131210123 is 321012131.

It is a cyclic number.

It is not a de Polignac number, because 131210123 - 2⁸ = 131209867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131210098 and 131210107.

It is not an unprimeable number, because it can be changed into a prime (131210113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133811 + ... + 134787.

It is an arithmetic number, because the mean of its divisors is an integer number (9286110).

Almost surely, 2^131210123 is an apocalyptic number.

131210123 is a deficient number, since it is larger than the sum of its proper divisors (17367637).

131210123 is a wasteful number, since it uses less digits than its factorization.

131210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131210123 is about 11454.6987302155. The cubic root of 131210123 is about 508.1467054640.

Adding to 131210123 its reverse (321012131), we get a palindrome (452222254).

The spelling of 131210123 in words is "one hundred thirty-one million, two hundred ten thousand, one hundred twenty-three".