40240123100 has 18 divisors (see below), whose sum is σ = 87321067344. Its totient is φ = 16096049200.

The previous prime is 40240123061. The next prime is 40240123109. The reversal of 40240123100 is 132104204.

It is a super-2 number, since 2×40240123100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240123109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201200516 + ... + 201200715.

It is an arithmetic number, because the mean of its divisors is an integer number (4851170408).

Almost surely, 2^40240123100 is an apocalyptic number.

It is an amenable number.

40240123100 is an abundant number, since it is smaller than the sum of its proper divisors (47080944244).

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

40240123100 is a wasteful number, since it uses less digits than its factorization.

40240123100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402401245 (or 402401238 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 40240123100 its reverse (132104204), we get a palindrome (40372227304).

The spelling of 40240123100 in words is "forty billion, two hundred forty million, one hundred twenty-three thousand, one hundred".