41430140021 has 4 divisors (see below), whose sum is σ = 41486662092. Its totient is φ = 41373617952.

The previous prime is 41430139987. The next prime is 41430140023. The reversal of 41430140021 is 12004103414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12004103414 = 2 ⋅6002051707.

It can be written as a sum of positive squares in 2 ways, for example, as 28657749796 + 12772390225 = 169286^2 + 113015^2 .

It is a cyclic number.

It is not a de Polignac number, because 41430140021 - 2⁶ = 41430139957 is a prime.

It is a super-3 number, since 3×41430140021³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41430139975 and 41430140002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41430140023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28259936 + ... + 28261401.

It is an arithmetic number, because the mean of its divisors is an integer number (10371665523).

Almost surely, 2^41430140021 is an apocalyptic number.

It is an amenable number.

41430140021 is a deficient number, since it is larger than the sum of its proper divisors (56522071).

41430140021 is an equidigital number, since it uses as much as digits as its factorization.

41430140021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56522070.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 41430140021 its reverse (12004103414), we get a palindrome (53434243435).

The spelling of 41430140021 in words is "forty-one billion, four hundred thirty million, one hundred forty thousand, twenty-one".