20700130 has 32 divisors (see below), whose sum is σ = 40875840. Its totient is φ = 7485120.

The previous prime is 20700109. The next prime is 20700143. The reversal of 20700130 is 3100702.

It is a self number, because there is not a number n which added to its sum of digits gives 20700130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24556 + ... + 25384.

It is an arithmetic number, because the mean of its divisors is an integer number (1277370).

Almost surely, 2^20700130 is an apocalyptic number.

20700130 is a deficient number, since it is larger than the sum of its proper divisors (20175710).

20700130 is a wasteful number, since it uses less digits than its factorization.

20700130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 20700130 is about 4549.7395529854. The cubic root of 20700130 is about 274.5729128156.

Adding to 20700130 its reverse (3100702), we get a palindrome (23800832).

The spelling of 20700130 in words is "twenty million, seven hundred thousand, one hundred thirty".