1213423441 has 8 divisors (see below), whose sum is σ = 1251374400. Its totient is φ = 1176052080.

The previous prime is 1213423439. The next prime is 1213423459. The reversal of 1213423441 is 1443243121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213423441 - 2¹ = 1213423439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213421441) 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, 140646 + ... + 149023.

It is an arithmetic number, because the mean of its divisors is an integer number (156421800).

Almost surely, 2^1213423441 is an apocalyptic number.

It is an amenable number.

1213423441 is a deficient number, since it is larger than the sum of its proper divisors (37950959).

1213423441 is an equidigital number, since it uses as much as digits as its factorization.

1213423441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289799.

The product of its digits is 2304, while the sum is 25.

The square root of 1213423441 is about 34834.2280092440. The cubic root of 1213423441 is about 1066.6062564203.

Adding to 1213423441 its reverse (1443243121), we get a palindrome (2656666562).

The spelling of 1213423441 in words is "one billion, two hundred thirteen million, four hundred twenty-three thousand, four hundred forty-one".