40434020101 has 4 divisors (see below), whose sum is σ = 40639269132. Its totient is φ = 40228771072.

The previous prime is 40434020093. The next prime is 40434020113. The reversal of 40434020101 is 10102043404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19372464225 + 21061555876 = 139185^2 + 145126^2 .

It is a cyclic number.

It is not a de Polignac number, because 40434020101 - 2³ = 40434020093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434020191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102624220 + ... + 102624613.

It is an arithmetic number, because the mean of its divisors is an integer number (10159817283).

Almost surely, 2^40434020101 is an apocalyptic number.

It is an amenable number.

40434020101 is a deficient number, since it is larger than the sum of its proper divisors (205249031).

40434020101 is a wasteful number, since it uses less digits than its factorization.

40434020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205249030.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40434020101 its reverse (10102043404), we get a palindrome (50536063505).

The spelling of 40434020101 in words is "forty billion, four hundred thirty-four million, twenty thousand, one hundred one".