20435101011100 has 36 divisors (see below), whose sum is σ = 44968734973008. Its totient is φ = 8058913072000.

The previous prime is 20435101011089. The next prime is 20435101011109. The reversal of 20435101011100 is 111010153402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20435101011109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1439084521 + ... + 1439098720.

It is an arithmetic number, because the mean of its divisors is an integer number (1249131527028).

Almost surely, 2^{20435101011100} is an apocalyptic number.

20435101011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20435101011100 is an abundant number, since it is smaller than the sum of its proper divisors (24533633961908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20435101011100 is a wasteful number, since it uses less digits than its factorization.

20435101011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878183326 (or 2878183319 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 20435101011100 its reverse (111010153402), we get a palindrome (20546111164502).

The spelling of 20435101011100 in words is "twenty trillion, four hundred thirty-five billion, one hundred one million, eleven thousand, one hundred".