1131023042100 has 216 divisors, whose sum is σ = 4229667617280. Its totient is φ = 258519522240.

The previous prime is 1131023042053. The next prime is 1131023042101. The reversal of 1131023042100 is 12403201311.

1131023042100 is a `hidden beast` number, since 1 + 1 + 3 + 10 + 230 + 421 + 0 + 0 = 666.

It is a super-2 number, since 2×1131023042100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131023042101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4142164 + ... + 4406763.

Almost surely, 2^{1131023042100} is an apocalyptic number.

1131023042100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131023042100 is an abundant number, since it is smaller than the sum of its proper divisors (3098644575180).

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

1131023042100 is a wasteful number, since it uses less digits than its factorization.

1131023042100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8548964 (or 8548944 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1131023042100 its reverse (12403201311), we get a palindrome (1143426243411).

The spelling of 1131023042100 in words is "one trillion, one hundred thirty-one billion, twenty-three million, forty-two thousand, one hundred".