20310045454 has 8 divisors (see below), whose sum is σ = 30520764648. Its totient is φ = 10136457240.

The previous prime is 20310045449. The next prime is 20310045461. The reversal of 20310045454 is 45454001302.

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

It is a super-2 number, since 2×20310045454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9281377 + ... + 9283564.

It is an arithmetic number, because the mean of its divisors is an integer number (3815095581).

Almost surely, 2^20310045454 is an apocalyptic number.

20310045454 is a deficient number, since it is larger than the sum of its proper divisors (10210719194).

20310045454 is a wasteful number, since it uses less digits than its factorization.

20310045454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18565490.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 20310045454 its reverse (45454001302), we get a palindrome (65764046756).

The spelling of 20310045454 in words is "twenty billion, three hundred ten million, forty-five thousand, four hundred fifty-four".