1244121433 has 4 divisors (see below), whose sum is σ = 1245626640. Its totient is φ = 1242616228.

The previous prime is 1244121383. The next prime is 1244121479. The reversal of 1244121433 is 3341214421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3341214421 = 107 ⋅31226303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244121433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1244121398 and 1244121407.

It is not an unprimeable number, because it can be changed into a prime (1244121493) 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, 751363 + ... + 753016.

It is an arithmetic number, because the mean of its divisors is an integer number (311406660).

Almost surely, 2^1244121433 is an apocalyptic number.

It is an amenable number.

1244121433 is a deficient number, since it is larger than the sum of its proper divisors (1505207).

1244121433 is an equidigital number, since it uses as much as digits as its factorization.

1244121433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505206.

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

The square root of 1244121433 is about 35272.1055935140. The cubic root of 1244121433 is about 1075.5260257399.

Adding to 1244121433 its reverse (3341214421), we get a palindrome (4585335854).

The spelling of 1244121433 in words is "one billion, two hundred forty-four million, one hundred twenty-one thousand, four hundred thirty-three".