131234332402123 has 4 divisors (see below), whose sum is σ = 133032062983048. Its totient is φ = 129436601821200.

The previous prime is 131234332402091. The next prime is 131234332402141. The reversal of 131234332402123 is 321204233432131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131234332402123 - 2⁵ = 131234332402091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131234332402163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898865290353 + ... + 898865290498.

It is an arithmetic number, because the mean of its divisors is an integer number (33258015745762).

Almost surely, 2^{131234332402123} is an apocalyptic number.

131234332402123 is a deficient number, since it is larger than the sum of its proper divisors (1797730580925).

131234332402123 is an equidigital number, since it uses as much as digits as its factorization.

131234332402123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797730580924.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 131234332402123 its reverse (321204233432131), we get a palindrome (452438565834254).

The spelling of 131234332402123 in words is "one hundred thirty-one trillion, two hundred thirty-four billion, three hundred thirty-two million, four hundred two thousand, one hundred twenty-three".