11551343100 has 72 divisors (see below), whose sum is σ = 36460249728. Its totient is φ = 2800324800.

The previous prime is 11551343093. The next prime is 11551343117. The reversal of 11551343100 is 134315511.

It is a super-2 number, since 2×11551343100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1746904 + ... + 1753503.

Almost surely, 2^11551343100 is an apocalyptic number.

11551343100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11551343100 is an abundant number, since it is smaller than the sum of its proper divisors (24908906628).

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

11551343100 is a wasteful number, since it uses less digits than its factorization.

11551343100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500435 (or 3500428 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 11551343100 its reverse (134315511), we get a palindrome (11685658611).

The spelling of 11551343100 in words is "eleven billion, five hundred fifty-one million, three hundred forty-three thousand, one hundred".