102143120 has 40 divisors (see below), whose sum is σ = 240359616. Its totient is φ = 40362368.

The previous prime is 102143113. The next prime is 102143141. The reversal of 102143120 is 21341201.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 102143095 and 102143104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052 + ... + 14331.

Almost surely, 2^102143120 is an apocalyptic number.

102143120 is a gapful number since it is divisible by the number (10) 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 102143120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120179808).

102143120 is an abundant number, since it is smaller than the sum of its proper divisors (138216496).

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

102143120 is a wasteful number, since it uses less digits than its factorization.

102143120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15479 (or 15473 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102143120 is about 10106.5879504410. The cubic root of 102143120 is about 467.4513013225.

Adding to 102143120 its reverse (21341201), we get a palindrome (123484321).

The spelling of 102143120 in words is "one hundred two million, one hundred forty-three thousand, one hundred twenty".