1244102312 has 8 divisors (see below), whose sum is σ = 2332691850. Its totient is φ = 622051152.

The previous prime is 1244102303. The next prime is 1244102317. The reversal of 1244102312 is 2132014421.

It can be written as a sum of positive squares in only one way, i.e., 1228782916 + 15319396 = 35054^2 + 3914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1244102317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77756387 + ... + 77756402.

Almost surely, 2^1244102312 is an apocalyptic number.

It is an amenable number.

1244102312 is a deficient number, since it is larger than the sum of its proper divisors (1088589538).

1244102312 is a wasteful number, since it uses less digits than its factorization.

1244102312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155512795 (or 155512791 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1244102312 is about 35271.8345425922. The cubic root of 1244102312 is about 1075.5205157637.

Adding to 1244102312 its reverse (2132014421), we get a palindrome (3376116733).

The spelling of 1244102312 in words is "one billion, two hundred forty-four million, one hundred two thousand, three hundred twelve".