2143061000 has 128 divisors (see below), whose sum is σ = 5252981760. Its totient is φ = 817344000.

The previous prime is 2143060991. The next prime is 2143061009. The reversal of 2143061000 is 1603412.

It is an interprime number because it is at equal distance from previous prime (2143060991) and next prime (2143061009).

It is a self number, because there is not a number n which added to its sum of digits gives 2143061000.

It is not an unprimeable number, because it can be changed into a prime (2143061009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2262527 + ... + 2263473.

It is an arithmetic number, because the mean of its divisors is an integer number (41038920).

Almost surely, 2^2143061000 is an apocalyptic number.

2143061000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143061000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2626490880).

2143061000 is an abundant number, since it is smaller than the sum of its proper divisors (3109920760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143061000 is a wasteful number, since it uses less digits than its factorization.

2143061000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2143061000 is about 46293.2068450653. The cubic root of 2143061000 is about 1289.2728710718.

Adding to 2143061000 its reverse (1603412), we get a palindrome (2144664412).

The spelling of 2143061000 in words is "two billion, one hundred forty-three million, sixty-one thousand".