1020244143 has 8 divisors (see below), whose sum is σ = 1419470208. Its totient is φ = 650590424.

The previous prime is 1020244139. The next prime is 1020244151. The reversal of 1020244143 is 3414420201.

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 1020244143 - 2² = 1020244139 is a prime.

It is a super-2 number, since 2×1020244143² = 2081796222651608898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020244153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7393005 + ... + 7393142.

It is an arithmetic number, because the mean of its divisors is an integer number (177433776).

Almost surely, 2^1020244143 is an apocalyptic number.

1020244143 is a deficient number, since it is larger than the sum of its proper divisors (399226065).

1020244143 is a wasteful number, since it uses less digits than its factorization.

1020244143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14786173.

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

The square root of 1020244143 is about 31941.2608235805. The cubic root of 1020244143 is about 1006.7030168421.

Adding to 1020244143 its reverse (3414420201), we get a palindrome (4434664344).

It can be divided in two parts, 10202 and 44143, that added together give a palindrome (54345).

The spelling of 1020244143 in words is "one billion, twenty million, two hundred forty-four thousand, one hundred forty-three".