1225231874623 has 4 divisors (see below), whose sum is σ = 1267481249640. Its totient is φ = 1182982499608.

The previous prime is 1225231874611. The next prime is 1225231874683. The reversal of 1225231874623 is 3264781325221.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225231874623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225231874683) 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, 21124687465 + ... + 21124687522.

It is an arithmetic number, because the mean of its divisors is an integer number (316870312410).

Almost surely, 2^{1225231874623} is an apocalyptic number.

1225231874623 is a deficient number, since it is larger than the sum of its proper divisors (42249375017).

1225231874623 is an equidigital number, since it uses as much as digits as its factorization.

1225231874623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42249375016.

The product of its digits is 967680, while the sum is 46.

The spelling of 1225231874623 in words is "one trillion, two hundred twenty-five billion, two hundred thirty-one million, eight hundred seventy-four thousand, six hundred twenty-three".