1244220031 has 8 divisors (see below), whose sum is σ = 1293868800. Its totient is φ = 1195020960.

The previous prime is 1244220017. The next prime is 1244220041. The reversal of 1244220031 is 1300224421.

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 1244220031 - 2⁷ = 1244219903 is a prime.

It is a super-2 number, since 2×1244220031² = 3096166971083281922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1244219990 and 1244220008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244220041) 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, 106776 + ... + 117853.

It is an arithmetic number, because the mean of its divisors is an integer number (161733600).

Almost surely, 2^1244220031 is an apocalyptic number.

1244220031 is a deficient number, since it is larger than the sum of its proper divisors (49648769).

1244220031 is a wasteful number, since it uses less digits than its factorization.

1244220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224849.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1244220031 is about 35273.5032425190. The cubic root of 1244220031 is about 1075.5544371985.

Adding to 1244220031 its reverse (1300224421), we get a palindrome (2544444452).

The spelling of 1244220031 in words is "one billion, two hundred forty-four million, two hundred twenty thousand, thirty-one".