1020143013 has 8 divisors (see below), whose sum is σ = 1361128800. Its totient is φ = 679626288.

The previous prime is 1020142997. The next prime is 1020143023. The reversal of 1020143013 is 3103410201.

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

It is not a de Polignac number, because 1020143013 - 2⁴ = 1020142997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020142983 and 1020143001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020143023) 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, 112158 + ... + 120911.

It is an arithmetic number, because the mean of its divisors is an integer number (170141100).

Almost surely, 2^1020143013 is an apocalyptic number.

It is an amenable number.

1020143013 is a deficient number, since it is larger than the sum of its proper divisors (340985787).

1020143013 is a wasteful number, since it uses less digits than its factorization.

1020143013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234531.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1020143013 is about 31939.6777222313. The cubic root of 1020143013 is about 1006.6697531568.

Adding to 1020143013 its reverse (3103410201), we get a palindrome (4123553214).

The spelling of 1020143013 in words is "one billion, twenty million, one hundred forty-three thousand, thirteen".