20534145251003 has 16 divisors (see below), whose sum is σ = 20665987488000. Its totient is φ = 20402499748512.

The previous prime is 20534145250943. The next prime is 20534145251063. The reversal of 20534145251003 is 30015254143502.

It is an interprime number because it is at equal distance from previous prime (20534145250943) and next prime (20534145251063).

It is a cyclic number.

It is not a de Polignac number, because 20534145251003 - 2³⁰ = 20533071509179 is a prime.

It is a super-2 number, since 2×20534145251003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20534145251063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2498371028 + ... + 2498379246.

It is an arithmetic number, because the mean of its divisors is an integer number (1291624218000).

Almost surely, 2^{20534145251003} is an apocalyptic number.

20534145251003 is a deficient number, since it is larger than the sum of its proper divisors (131842236997).

20534145251003 is a wasteful number, since it uses less digits than its factorization.

20534145251003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18274.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20534145251003 its reverse (30015254143502), we get a palindrome (50549399394505).

The spelling of 20534145251003 in words is "twenty trillion, five hundred thirty-four billion, one hundred forty-five million, two hundred fifty-one thousand, three".