13123011100 has 108 divisors (see below), whose sum is σ = 30032234064. Its totient is φ = 4967874560.

The previous prime is 13123011091. The next prime is 13123011101. The reversal of 13123011100 is 111032131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123011101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51062172 + ... + 51062428.

Almost surely, 2^13123011100 is an apocalyptic number.

13123011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13123011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15016117032).

13123011100 is an abundant number, since it is smaller than the sum of its proper divisors (16909222964).

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

13123011100 is a wasteful number, since it uses less digits than its factorization.

13123011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13123011100 its reverse (111032131), we get a palindrome (13234043231).

The spelling of 13123011100 in words is "thirteen billion, one hundred twenty-three million, eleven thousand, one hundred".