20235142204 has 12 divisors (see below), whose sum is σ = 35570296384. Its totient is φ = 10072200384.

The previous prime is 20235142201. The next prime is 20235142219. The reversal of 20235142204 is 40224153202.

It is a super-2 number, since 2×20235142204² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235142201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11341677 + ... + 11343460.

Almost surely, 2^20235142204 is an apocalyptic number.

It is an amenable number.

20235142204 is a deficient number, since it is larger than the sum of its proper divisors (15335154180).

20235142204 is a wasteful number, since it uses less digits than its factorization.

20235142204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22685364 (or 22685362 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20235142204 its reverse (40224153202), we get a palindrome (60459295406).

The spelling of 20235142204 in words is "twenty billion, two hundred thirty-five million, one hundred forty-two thousand, two hundred four".