1245323121 has 8 divisors (see below), whose sum is σ = 1897635264. Its totient is φ = 711613200.

The previous prime is 1245323081. The next prime is 1245323143. The reversal of 1245323121 is 1213235421.

1245323121 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1245323121 - 2¹⁴ = 1245306737 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1245323091 and 1245323100.

It is not an unprimeable number, because it can be changed into a prime (1245323921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29650530 + ... + 29650571.

It is an arithmetic number, because the mean of its divisors is an integer number (237204408).

Almost surely, 2^1245323121 is an apocalyptic number.

It is an amenable number.

1245323121 is a deficient number, since it is larger than the sum of its proper divisors (652312143).

1245323121 is an equidigital number, since it uses as much as digits as its factorization.

1245323121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59301111.

The product of its digits is 1440, while the sum is 24.

The square root of 1245323121 is about 35289.1360194607. The cubic root of 1245323121 is about 1075.8721952766.

Adding to 1245323121 its reverse (1213235421), we get a palindrome (2458558542).

The spelling of 1245323121 in words is "one billion, two hundred forty-five million, three hundred twenty-three thousand, one hundred twenty-one".