1020344143 has 8 divisors (see below), whose sum is σ = 1255808288. Its totient is φ = 807305184.

The previous prime is 1020344123. The next prime is 1020344159. The reversal of 1020344143 is 3414430201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020344143 - 2¹³ = 1020335951 is a prime.

It is a super-2 number, since 2×1020344143² = 2082204340308808898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020344123) 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, 5606196 + ... + 5606377.

It is an arithmetic number, because the mean of its divisors is an integer number (156976036).

Almost surely, 2^1020344143 is an apocalyptic number.

1020344143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020344143 is a deficient number, since it is larger than the sum of its proper divisors (235464145).

1020344143 is a wasteful number, since it uses less digits than its factorization.

1020344143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11212593.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1020344143 is about 31942.8261586228. The cubic root of 1020344143 is about 1006.7359066863.

Adding to 1020344143 its reverse (3414430201), we get a palindrome (4434774344).

The spelling of 1020344143 in words is "one billion, twenty million, three hundred forty-four thousand, one hundred forty-three".