131212231013123 has 16 divisors (see below), whose sum is σ = 144424320314400. Its totient is φ = 118467875393280.

The previous prime is 131212231013093. The next prime is 131212231013207. The reversal of 131212231013123 is 321310132212131.

It is a cyclic number.

It is not a de Polignac number, because 131212231013123 - 2¹⁶ = 131212230947587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131212231013092 and 131212231013101.

It is not an unprimeable number, because it can be changed into a prime (131212231012123) 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, 462045458 + ... + 462329351.

It is an arithmetic number, because the mean of its divisors is an integer number (9026520019650).

Almost surely, 2^{131212231013123} is an apocalyptic number.

131212231013123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131212231013123 is a deficient number, since it is larger than the sum of its proper divisors (13212089301277).

131212231013123 is a wasteful number, since it uses less digits than its factorization.

131212231013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924375062.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 131212231013123 its reverse (321310132212131), we get a palindrome (452522363225254).

The spelling of 131212231013123 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred thirty-one million, thirteen thousand, one hundred twenty-three".