1244042031 has 16 divisors (see below), whose sum is σ = 1762795008. Its totient is φ = 777686400.

The previous prime is 1244042021. The next prime is 1244042047. The reversal of 1244042031 is 1302404421.

It is not a de Polignac number, because 1244042031 - 2¹³ = 1244033839 is a prime.

It is a super-2 number, since 2×1244042031² = 3095281149789209922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1244041989 and 1244042007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244042011) 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, 31185 + ... + 58826.

It is an arithmetic number, because the mean of its divisors is an integer number (110174688).

Almost surely, 2^1244042031 is an apocalyptic number.

1244042031 is a deficient number, since it is larger than the sum of its proper divisors (518752977).

1244042031 is a wasteful number, since it uses less digits than its factorization.

1244042031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90302.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1244042031 is about 35270.9800119021. The cubic root of 1244042031 is about 1075.5031446041.

Adding to 1244042031 its reverse (1302404421), we get a palindrome (2546446452).

The spelling of 1244042031 in words is "one billion, two hundred forty-four million, forty-two thousand, thirty-one".