1225024311 has 8 divisors (see below), whose sum is σ = 1866703744. Its totient is φ = 700013880.

The previous prime is 1225024289. The next prime is 1225024331. The reversal of 1225024311 is 1134205221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225024311 - 2⁶ = 1225024247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 58334491 = 1225024311 / (1 + 2 + 2 + 5 + 0 + 2 + 4 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225024331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29167225 + ... + 29167266.

It is an arithmetic number, because the mean of its divisors is an integer number (233337968).

Almost surely, 2^1225024311 is an apocalyptic number.

1225024311 is a deficient number, since it is larger than the sum of its proper divisors (641679433).

1225024311 is an equidigital number, since it uses as much as digits as its factorization.

1225024311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58334501.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1225024311 is about 35000.3472982769. The cubic root of 1225024311 is about 1069.9945587402.

Adding to 1225024311 its reverse (1134205221), we get a palindrome (2359229532).

The spelling of 1225024311 in words is "one billion, two hundred twenty-five million, twenty-four thousand, three hundred eleven".