21113032401100 has 36 divisors (see below), whose sum is σ = 46220725293624. Its totient is φ = 8370476558080.

The previous prime is 21113032401049. The next prime is 21113032401101. The reversal of 21113032401100 is 110423031112.

It is not an unprimeable number, because it can be changed into a prime (21113032401101) 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, 934193674 + ... + 934216273.

It is an arithmetic number, because the mean of its divisors is an integer number (1283909035934).

Almost surely, 2^{21113032401100} is an apocalyptic number.

21113032401100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21113032401100 is an abundant number, since it is smaller than the sum of its proper divisors (25107692892524).

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

21113032401100 is a wasteful number, since it uses less digits than its factorization.

21113032401100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868410074 (or 1868410067 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21113032401100 its reverse (110423031112), we get a palindrome (21223455432212).

The spelling of 21113032401100 in words is "twenty-one trillion, one hundred thirteen billion, thirty-two million, four hundred one thousand, one hundred".