20599314503 has 2 divisors, whose sum is σ = 20599314504. Its totient is φ = 20599314502.

The previous prime is 20599314431. The next prime is 20599314553. The reversal of 20599314503 is 30541399502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20599314503 - 2¹⁰ = 20599313479 is a prime.

It is a super-2 number, since 2×20599314503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20599314553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10299657251 + 10299657252.

It is an arithmetic number, because the mean of its divisors is an integer number (10299657252).

Almost surely, 2^20599314503 is an apocalyptic number.

20599314503 is a deficient number, since it is larger than the sum of its proper divisors (1).

20599314503 is an equidigital number, since it uses as much as digits as its factorization.

20599314503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 41.

The spelling of 20599314503 in words is "twenty billion, five hundred ninety-nine million, three hundred fourteen thousand, five hundred three".