40432120213 has 6 divisors (see below), whose sum is σ = 42672127254. Its totient is φ = 38304113544.

The previous prime is 40432120199. The next prime is 40432120231. The reversal of 40432120213 is 31202123404.

40432120213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 40424319364 + 7800849 = 201058^2 + 2793^2 .

It is not a de Polignac number, because 40432120213 - 2⁵ = 40432120181 is a prime.

It is a Duffinian number.

40432120213 is a modest number, since divided by 120213 gives 40432 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40432120513) 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, 55999806 + ... + 56000527.

It is an arithmetic number, because the mean of its divisors is an integer number (7112021209).

Almost surely, 2^40432120213 is an apocalyptic number.

It is an amenable number.

40432120213 is a deficient number, since it is larger than the sum of its proper divisors (2240007041).

40432120213 is a wasteful number, since it uses less digits than its factorization.

40432120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112000371 (or 112000352 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40432120213 its reverse (31202123404), we get a palindrome (71634243617).

The spelling of 40432120213 in words is "forty billion, four hundred thirty-two million, one hundred twenty thousand, two hundred thirteen".