20350320135 has 32 divisors (see below), whose sum is σ = 34546839552. Its totient is φ = 10194024960.

The previous prime is 20350320119. The next prime is 20350320181. The reversal of 20350320135 is 53102305302.

It is a happy number.

It is not a de Polignac number, because 20350320135 - 2⁴ = 20350320119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42250 + ... + 206120.

It is an arithmetic number, because the mean of its divisors is an integer number (1079588736).

Almost surely, 2^20350320135 is an apocalyptic number.

20350320135 is a deficient number, since it is larger than the sum of its proper divisors (14196519417).

20350320135 is a wasteful number, since it uses less digits than its factorization.

20350320135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164383.

The product of its (nonzero) digits is 2700, while the sum is 24.

Adding to 20350320135 its reverse (53102305302), we get a palindrome (73452625437).

The spelling of 20350320135 in words is "twenty billion, three hundred fifty million, three hundred twenty thousand, one hundred thirty-five".