20135143522510 has 32 divisors (see below), whose sum is σ = 36740219643360. Its totient is φ = 7943624437248.

The previous prime is 20135143522489. The next prime is 20135143522511. The reversal of 20135143522510 is 1522534153102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135143522511) 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, 81141906 + ... + 81389674.

It is an arithmetic number, because the mean of its divisors is an integer number (1148131863855).

Almost surely, 2^{20135143522510} is an apocalyptic number.

20135143522510 is a deficient number, since it is larger than the sum of its proper divisors (16605076120850).

20135143522510 is a wasteful number, since it uses less digits than its factorization.

20135143522510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359172.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 20135143522510 its reverse (1522534153102), we get a palindrome (21657677675612).

The spelling of 20135143522510 in words is "twenty trillion, one hundred thirty-five billion, one hundred forty-three million, five hundred twenty-two thousand, five hundred ten".