40113101 has 24 divisors (see below), whose sum is σ = 48617280. Its totient is φ = 32408640.

The previous prime is 40113053. The next prime is 40113131. The reversal of 40113101 is 10131104.

It is a de Polignac number, because none of the positive numbers 2^k-40113101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40113131) 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, 450665 + ... + 450753.

It is an arithmetic number, because the mean of its divisors is an integer number (2025720).

Almost surely, 2^40113101 is an apocalyptic number.

It is an amenable number.

40113101 is a deficient number, since it is larger than the sum of its proper divisors (8504179).

40113101 is an equidigital number, since it uses as much as digits as its factorization.

40113101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 40113101 is about 6333.4904278762. The cubic root of 40113101 is about 342.3172193257.

Adding to 40113101 its reverse (10131104), we get a palindrome (50244205).

The spelling of 40113101 in words is "forty million, one hundred thirteen thousand, one hundred one".