123310131333145 has 16 divisors (see below), whose sum is σ = 148393227191040. Its totient is φ = 98367688911744.

The previous prime is 123310131333119. The next prime is 123310131333167. The reversal of 123310131333145 is 541333131013321.

It is a cyclic number.

It is not a de Polignac number, because 123310131333145 - 2¹⁹ = 123310130808857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123310131333145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15232980 + ... + 21878389.

It is an arithmetic number, because the mean of its divisors is an integer number (9274576699440).

Almost surely, 2^{123310131333145} is an apocalyptic number.

It is an amenable number.

123310131333145 is a deficient number, since it is larger than the sum of its proper divisors (25083095857895).

123310131333145 is a wasteful number, since it uses less digits than its factorization.

123310131333145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37113264.

The product of its (nonzero) digits is 29160, while the sum is 34.

Adding to 123310131333145 its reverse (541333131013321), we get a palindrome (664643262346466).

The spelling of 123310131333145 in words is "one hundred twenty-three trillion, three hundred ten billion, one hundred thirty-one million, three hundred thirty-three thousand, one hundred forty-five".