20436103351 has 8 divisors (see below), whose sum is σ = 21207496320. Its totient is φ = 19669157088.

The previous prime is 20436103327. The next prime is 20436103367. The reversal of 20436103351 is 15330163402.

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

It is a cyclic number.

It is not a de Polignac number, because 20436103351 - 2⁵ = 20436103319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20436103651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102311 + ... + 1120696.

It is an arithmetic number, because the mean of its divisors is an integer number (2650937040).

Almost surely, 2^20436103351 is an apocalyptic number.

20436103351 is a deficient number, since it is larger than the sum of its proper divisors (771392969).

20436103351 is a wasteful number, since it uses less digits than its factorization.

20436103351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223353.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 20436103351 its reverse (15330163402), we get a palindrome (35766266753).

The spelling of 20436103351 in words is "twenty billion, four hundred thirty-six million, one hundred three thousand, three hundred fifty-one".