20420042231410 has 16 divisors (see below), whose sum is σ = 38023526914200. Its totient is φ = 7886361137536.

The previous prime is 20420042231383. The next prime is 20420042231417. The reversal of 20420042231410 is 1413224002402.

It can be written as a sum of positive squares in 4 ways, for example, as 13618852879129 + 6801189352281 = 3690373^2 + 2607909^2 .

It is not an unprimeable number, because it can be changed into a prime (20420042231417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35206969075 + ... + 35206969654.

Almost surely, 2^{20420042231410} is an apocalyptic number.

20420042231410 is a deficient number, since it is larger than the sum of its proper divisors (17603484682790).

20420042231410 is a wasteful number, since it uses less digits than its factorization.

20420042231410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70413938765.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20420042231410 its reverse (1413224002402), we get a palindrome (21833266233812).

The spelling of 20420042231410 in words is "twenty trillion, four hundred twenty billion, forty-two million, two hundred thirty-one thousand, four hundred ten".