1131230210100 has 144 divisors (see below), whose sum is σ = 3379662021120. Its totient is φ = 291839270400.

The previous prime is 1131230210093. The next prime is 1131230210107. The reversal of 1131230210100 is 10120321311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1131230210093) and next prime (1131230210107).

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 1131230210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131230210107) 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, 32839686 + ... + 32874114.

Almost surely, 2^{1131230210100} is an apocalyptic number.

1131230210100 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 1131230210100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689831010560).

1131230210100 is an abundant number, since it is smaller than the sum of its proper divisors (2248431811020).

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

1131230210100 is a wasteful number, since it uses less digits than its factorization.

1131230210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38010 (or 38003 counting only the distinct ones).

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

Adding to 1131230210100 its reverse (10120321311), we get a palindrome (1141350531411).

The spelling of 1131230210100 in words is "one trillion, one hundred thirty-one billion, two hundred thirty million, two hundred ten thousand, one hundred".