42102130 has 64 divisors (see below), whose sum is σ = 90243072. Its totient is φ = 13844160.

The previous prime is 42102107. The next prime is 42102131. The reversal of 42102130 is 3120124.

It is a self number, because there is not a number n which added to its sum of digits gives 42102130.

It is not an unprimeable number, because it can be changed into a prime (42102131) 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, 220335 + ... + 220525.

It is an arithmetic number, because the mean of its divisors is an integer number (1410048).

Almost surely, 2^42102130 is an apocalyptic number.

42102130 is an abundant number, since it is smaller than the sum of its proper divisors (48140942).

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

42102130 is a wasteful number, since it uses less digits than its factorization.

42102130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 42102130 is about 6488.6154147091. The cubic root of 42102130 is about 347.8841876924.

Adding to 42102130 its reverse (3120124), we get a palindrome (45222254).

The spelling of 42102130 in words is "forty-two million, one hundred two thousand, one hundred thirty".