20420000363523 has 16 divisors (see below), whose sum is σ = 27231391044000. Its totient is φ = 13610971879680.

The previous prime is 20420000363519. The next prime is 20420000363569. The reversal of 20420000363523 is 32536300002402.

It is not a de Polignac number, because 20420000363523 - 2² = 20420000363519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20420000363513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615989953 + ... + 616023101.

It is an arithmetic number, because the mean of its divisors is an integer number (1701961940250).

Almost surely, 2^{20420000363523} is an apocalyptic number.

20420000363523 is a deficient number, since it is larger than the sum of its proper divisors (6811390680477).

20420000363523 is a wasteful number, since it uses less digits than its factorization.

20420000363523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62582.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 20420000363523 its reverse (32536300002402), we get a palindrome (52956300365925).

The spelling of 20420000363523 in words is "twenty trillion, four hundred twenty billion, three hundred sixty-three thousand, five hundred twenty-three".