20441353513231 has 8 divisors (see below), whose sum is σ = 23364256154624. Its totient is φ = 17519128192440.

The previous prime is 20441353513219. The next prime is 20441353513277. The reversal of 20441353513231 is 13231535314402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20441353513231 - 2³⁷ = 20303914559759 is a prime.

It is a super-2 number, since 2×20441353513231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441353513631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169265475 + ... + 169386196.

It is an arithmetic number, because the mean of its divisors is an integer number (2920532019328).

Almost surely, 2^{20441353513231} is an apocalyptic number.

20441353513231 is a deficient number, since it is larger than the sum of its proper divisors (2922902641393).

20441353513231 is an equidigital number, since it uses as much as digits as its factorization.

20441353513231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338660301.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 20441353513231 its reverse (13231535314402), we get a palindrome (33672888827633).

The spelling of 20441353513231 in words is "twenty trillion, four hundred forty-one billion, three hundred fifty-three million, five hundred thirteen thousand, two hundred thirty-one".