20352446400031 has 4 divisors (see below), whose sum is σ = 20355797706352. Its totient is φ = 20349095093712.

The previous prime is 20352446400019. The next prime is 20352446400061. The reversal of 20352446400031 is 13000464425302.

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

It is a cyclic number.

It is not a de Polignac number, because 20352446400031 - 2¹⁹ = 20352445875743 is a prime.

It is a super-2 number, since 2×20352446400031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20352446400031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352446400001) 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, 1675644051 + ... + 1675656196.

It is an arithmetic number, because the mean of its divisors is an integer number (5088949426588).

Almost surely, 2^{20352446400031} is an apocalyptic number.

20352446400031 is a deficient number, since it is larger than the sum of its proper divisors (3351306321).

20352446400031 is an equidigital number, since it uses as much as digits as its factorization.

20352446400031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351306320.

The product of its (nonzero) digits is 69120, while the sum is 34.

The spelling of 20352446400031 in words is "twenty trillion, three hundred fifty-two billion, four hundred forty-six million, four hundred thousand, thirty-one".