20117034403754 has 4 divisors (see below), whose sum is σ = 30175551605634. Its totient is φ = 10058517201876.

The previous prime is 20117034403751. The next prime is 20117034403841. The reversal of 20117034403754 is 45730443071102.

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

It can be written as a sum of positive squares in only one way, i.e., 20003050515529 + 113983888225 = 4472477^2 + 337615^2 .

It is not an unprimeable number, because it can be changed into a prime (20117034403751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5029258600937 + ... + 5029258600940.

Almost surely, 2^{20117034403754} is an apocalyptic number.

20117034403754 is a deficient number, since it is larger than the sum of its proper divisors (10058517201880).

20117034403754 is a wasteful number, since it uses less digits than its factorization.

20117034403754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10058517201879.

The product of its (nonzero) digits is 282240, while the sum is 41.

Adding to 20117034403754 its reverse (45730443071102), we get a palindrome (65847477474856).

The spelling of 20117034403754 in words is "twenty trillion, one hundred seventeen billion, thirty-four million, four hundred three thousand, seven hundred fifty-four".