13031212001100 has 144 divisors (see below), whose sum is σ = 37873805817120. Its totient is φ = 3459310848000.

The previous prime is 13031212001053. The next prime is 13031212001107. The reversal of 13031212001100 is 110021213031.

It is a happy number.

It is a super-2 number, since 2×13031212001100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13031212001100.

It is not an unprimeable number, because it can be changed into a prime (13031212001107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 865681174 + ... + 865696226.

Almost surely, 2^{13031212001100} is an apocalyptic number.

13031212001100 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 13031212001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18936902908560).

13031212001100 is an abundant number, since it is smaller than the sum of its proper divisors (24842593816020).

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

13031212001100 is a wasteful number, since it uses less digits than its factorization.

13031212001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27900 (or 27893 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13031212001100 its reverse (110021213031), we get a palindrome (13141233214131).

The spelling of 13031212001100 in words is "thirteen trillion, thirty-one billion, two hundred twelve million, one thousand, one hundred".