1213404510100 has 18 divisors (see below), whose sum is σ = 2633087787134. Its totient is φ = 485361804000.

The previous prime is 1213404510089. The next prime is 1213404510103. The reversal of 1213404510100 is 10154043121.

It can be written as a sum of positive squares in 3 ways, for example, as 15067071504 + 1198337438596 = 122748^2 + 1094686^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213404510103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6067022451 + ... + 6067022650.

Almost surely, 2^{1213404510100} is an apocalyptic number.

1213404510100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213404510100 is an abundant number, since it is smaller than the sum of its proper divisors (1419683277034).

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

1213404510100 is a wasteful number, since it uses less digits than its factorization.

1213404510100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12134045115 (or 12134045108 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 1213404510100 its reverse (10154043121), we get a palindrome (1223558553221).

The spelling of 1213404510100 in words is "one trillion, two hundred thirteen billion, four hundred four million, five hundred ten thousand, one hundred".