20050143135 has 64 divisors (see below), whose sum is σ = 35792395776. Its totient is φ = 9502617600.

The previous prime is 20050143133. The next prime is 20050143137. The reversal of 20050143135 is 53134105002.

It is an interprime number because it is at equal distance from previous prime (20050143133) and next prime (20050143137).

It is not a de Polignac number, because 20050143135 - 2¹ = 20050143133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050143133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1353720 + ... + 1368450.

It is an arithmetic number, because the mean of its divisors is an integer number (559256184).

Almost surely, 2^20050143135 is an apocalyptic number.

20050143135 is a deficient number, since it is larger than the sum of its proper divisors (15742252641).

20050143135 is a wasteful number, since it uses less digits than its factorization.

20050143135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14936.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 20050143135 its reverse (53134105002), we get a palindrome (73184248137).

It can be divided in two parts, 20050143 and 135, that added together give a triangular number (20050278 = T₆₃₃₂).

The spelling of 20050143135 in words is "twenty billion, fifty million, one hundred forty-three thousand, one hundred thirty-five".