40020212341 has 4 divisors (see below), whose sum is σ = 40020639372. Its totient is φ = 40019785312.

The previous prime is 40020212291. The next prime is 40020212347. The reversal of 40020212341 is 14321202004.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 31192858225 + 8827354116 = 176615^2 + 93954^2 .

It is a cyclic number.

It is not a de Polignac number, because 40020212341 - 2⁷ = 40020212213 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 (40020212347) 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, 5176 + ... + 282961.

It is an arithmetic number, because the mean of its divisors is an integer number (10005159843).

Almost surely, 2^40020212341 is an apocalyptic number.

It is an amenable number.

40020212341 is a deficient number, since it is larger than the sum of its proper divisors (427031).

40020212341 is a wasteful number, since it uses less digits than its factorization.

40020212341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427030.

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

Adding to 40020212341 its reverse (14321202004), we get a palindrome (54341414345).

The spelling of 40020212341 in words is "forty billion, twenty million, two hundred twelve thousand, three hundred forty-one".