131313232123 has 8 divisors (see below), whose sum is σ = 136485078480. Its totient is φ = 126184306080.

The previous prime is 131313232121. The next prime is 131313232133. The reversal of 131313232123 is 321232313131.

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 131313232123 - 2¹ = 131313232121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131313232121) 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, 10723840 + ... + 10736077.

It is an arithmetic number, because the mean of its divisors is an integer number (17060634810).

Almost surely, 2^131313232123 is an apocalyptic number.

131313232123 is a deficient number, since it is larger than the sum of its proper divisors (5171846357).

131313232123 is a wasteful number, since it uses less digits than its factorization.

131313232123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21460157.

The product of its digits is 1944, while the sum is 25.

Adding to 131313232123 its reverse (321232313131), we get a palindrome (452545545254).

The spelling of 131313232123 in words is "one hundred thirty-one billion, three hundred thirteen million, two hundred thirty-two thousand, one hundred twenty-three".