1020315143 has 16 divisors (see below), whose sum is σ = 1095120000. Its totient is φ = 947709792.

The previous prime is 1020315119. The next prime is 1020315169. The reversal of 1020315143 is 3415130201.

It is a cyclic number.

It is not a de Polignac number, because 1020315143 - 2⁸ = 1020314887 is a prime.

It is a super-2 number, since 2×1020315143² = 2082085982070220898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020315343) 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, 522533 + ... + 524481.

It is an arithmetic number, because the mean of its divisors is an integer number (68445000).

Almost surely, 2^1020315143 is an apocalyptic number.

1020315143 is a deficient number, since it is larger than the sum of its proper divisors (74804857).

1020315143 is a wasteful number, since it uses less digits than its factorization.

1020315143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1020315143 is about 31942.3722193578. The cubic root of 1020315143 is about 1006.7263688527.

Adding to 1020315143 its reverse (3415130201), we get a palindrome (4435445344).

The spelling of 1020315143 in words is "one billion, twenty million, three hundred fifteen thousand, one hundred forty-three".