1244101243 has 16 divisors (see below), whose sum is σ = 1570728960. Its totient is φ = 957153600.

The previous prime is 1244101223. The next prime is 1244101267. The reversal of 1244101243 is 3421014421.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244101243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244101213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96178 + ... + 108343.

It is an arithmetic number, because the mean of its divisors is an integer number (98170560).

Almost surely, 2^1244101243 is an apocalyptic number.

1244101243 is a deficient number, since it is larger than the sum of its proper divisors (326627717).

1244101243 is a wasteful number, since it uses less digits than its factorization.

1244101243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204618.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1244101243 is about 35271.8193888549. The cubic root of 1244101243 is about 1075.5202077151.

Adding to 1244101243 its reverse (3421014421), we get a palindrome (4665115664).

The spelling of 1244101243 in words is "one billion, two hundred forty-four million, one hundred one thousand, two hundred forty-three".