40203042100 has 72 divisors (see below), whose sum is σ = 94373404160. Its totient is φ = 14777527680.

The previous prime is 40203042079. The next prime is 40203042101. The reversal of 40203042100 is 124030204.

40203042100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40203042101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220561 + ... + 359239.

Almost surely, 2^40203042100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40203042100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47186702080).

40203042100 is an abundant number, since it is smaller than the sum of its proper divisors (54170362060).

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

40203042100 is a wasteful number, since it uses less digits than its factorization.

40203042100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138929 (or 138922 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 40203042100 its reverse (124030204), we get a palindrome (40327072304).

The spelling of 40203042100 in words is "forty billion, two hundred three million, forty-two thousand, one hundred".