20010100135 has 16 divisors (see below), whose sum is σ = 25285017600. Its totient is φ = 15160088736.

The previous prime is 20010100111. The next prime is 20010100141. The reversal of 20010100135 is 53100101002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010100135 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237786 + ... + 310744.

It is an arithmetic number, because the mean of its divisors is an integer number (1580313600).

Almost surely, 2^20010100135 is an apocalyptic number.

20010100135 is a deficient number, since it is larger than the sum of its proper divisors (5274917465).

20010100135 is a wasteful number, since it uses less digits than its factorization.

20010100135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75870.

The product of its (nonzero) digits is 30, while the sum is 13.

Adding to 20010100135 its reverse (53100101002), we get a palindrome (73110201137).

The spelling of 20010100135 in words is "twenty billion, ten million, one hundred thousand, one hundred thirty-five".