1161323063100 has 72 divisors (see below), whose sum is σ = 3733438596720. Its totient is φ = 309686149440.

The previous prime is 1161323063053. The next prime is 1161323063123. The reversal of 1161323063100 is 13603231611.

1161323063100 is a `hidden beast` number, since 1 + 1 + 6 + 1 + 3 + 23 + 0 + 631 + 0 + 0 = 666.

It is a super-2 number, since 2×1161323063100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 215057127 + ... + 215062526.

Almost surely, 2^{1161323063100} is an apocalyptic number.

1161323063100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161323063100 is an abundant number, since it is smaller than the sum of its proper divisors (2572115533620).

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

1161323063100 is a wasteful number, since it uses less digits than its factorization.

1161323063100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430119676 (or 430119663 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 1161323063100 its reverse (13603231611), we get a palindrome (1174926294711).

The spelling of 1161323063100 in words is "one trillion, one hundred sixty-one billion, three hundred twenty-three million, sixty-three thousand, one hundred".