1331210230123 has 4 divisors (see below), whose sum is σ = 1331535474928. Its totient is φ = 1330884985320.

The previous prime is 1331210230117. The next prime is 1331210230171. The reversal of 1331210230123 is 3210320121331.

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 1331210230123 - 2²⁵ = 1331176675691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331210230094 and 1331210230103.

It is not an unprimeable number, because it can be changed into a prime (1331210230223) 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, 162616263 + ... + 162624448.

It is an arithmetic number, because the mean of its divisors is an integer number (332883868732).

Almost surely, 2^{1331210230123} is an apocalyptic number.

1331210230123 is a deficient number, since it is larger than the sum of its proper divisors (325244805).

1331210230123 is an equidigital number, since it uses as much as digits as its factorization.

1331210230123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325244804.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1331210230123 its reverse (3210320121331), we get a palindrome (4541530351454).

The spelling of 1331210230123 in words is "one trillion, three hundred thirty-one billion, two hundred ten million, two hundred thirty thousand, one hundred twenty-three".