40120001100 has 54 divisors (see below), whose sum is σ = 125753917380. Its totient is φ = 10698666720.

The previous prime is 40120001087. The next prime is 40120001107. The reversal of 40120001100 is 110002104.

It is a happy number.

It is a super-2 number, since 2×40120001100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (40120001107) 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 17 ways as a sum of consecutive naturals, for example, 22287990 + ... + 22289789.

Almost surely, 2^40120001100 is an apocalyptic number.

It is an amenable number.

40120001100 is an abundant number, since it is smaller than the sum of its proper divisors (85633916280).

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

40120001100 is a wasteful number, since it uses less digits than its factorization.

40120001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44577799 (or 44577789 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 40120001100 its reverse (110002104), we get a palindrome (40230003204).

The spelling of 40120001100 in words is "forty billion, one hundred twenty million, one thousand, one hundred".