1252310222123 has 4 divisors (see below), whose sum is σ = 1252318593000. Its totient is φ = 1252301851248.

The previous prime is 1252310222101. The next prime is 1252310222131. The reversal of 1252310222123 is 3212220132521.

It is a happy number.

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 1252310222123 - 2⁸ = 1252310221867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252310222092 and 1252310222101.

It is not an unprimeable number, because it can be changed into a prime (1252310222183) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3956873 + ... + 4261626.

It is an arithmetic number, because the mean of its divisors is an integer number (313079648250).

Almost surely, 2^{1252310222123} is an apocalyptic number.

1252310222123 is a deficient number, since it is larger than the sum of its proper divisors (8370877).

1252310222123 is an equidigital number, since it uses as much as digits as its factorization.

1252310222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8370876.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1252310222123 its reverse (3212220132521), we get a palindrome (4464530354644).

The spelling of 1252310222123 in words is "one trillion, two hundred fifty-two billion, three hundred ten million, two hundred twenty-two thousand, one hundred twenty-three".