20113444402 has 8 divisors (see below), whose sum is σ = 30172045356. Its totient is φ = 10056095952.

The previous prime is 20113444399. The next prime is 20113444411. The reversal of 20113444402 is 20444431102.

It can be written as a sum of positive squares in 2 ways, for example, as 20109792481 + 3651921 = 141809^2 + 1911^2 .

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

It is an unprimeable number.

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, 271893 + ... + 337864.

Almost surely, 2^20113444402 is an apocalyptic number.

20113444402 is a deficient number, since it is larger than the sum of its proper divisors (10058600954).

20113444402 is a wasteful number, since it uses less digits than its factorization.

20113444402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626252.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20113444402 its reverse (20444431102), we get a palindrome (40557875504).

The spelling of 20113444402 in words is "twenty billion, one hundred thirteen million, four hundred forty-four thousand, four hundred two".