102142430120 has 16 divisors (see below), whose sum is σ = 229820467860. Its totient is φ = 40856972032.

The previous prime is 102142430053. The next prime is 102142430123. The reversal of 102142430120 is 21034241201.

It can be written as a sum of positive squares in 2 ways, for example, as 101046422884 + 1096007236 = 317878^2 + 33106^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102142430092 and 102142430101.

It is not an unprimeable number, because it can be changed into a prime (102142430123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276780337 + ... + 1276780416.

Almost surely, 2^102142430120 is an apocalyptic number.

102142430120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102142430120 is an abundant number, since it is smaller than the sum of its proper divisors (127678037740).

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

102142430120 is a wasteful number, since it uses less digits than its factorization.

102142430120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553560764 (or 2553560760 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102142430120 its reverse (21034241201), we get a palindrome (123176671321).

The spelling of 102142430120 in words is "one hundred two billion, one hundred forty-two million, four hundred thirty thousand, one hundred twenty".