20203120323 has 24 divisors (see below), whose sum is σ = 30008994288. Its totient is φ = 13088112192.

The previous prime is 20203120321. The next prime is 20203120369. The reversal of 20203120323 is 32302130202.

It is a happy number.

20203120323 is a `hidden beast` number, since 20 + 203 + 120 + 323 = 666.

It is not a de Polignac number, because 20203120323 - 2¹ = 20203120321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20203120296 and 20203120305.

It is not an unprimeable number, because it can be changed into a prime (20203120321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227340 + ... + 303462.

It is an arithmetic number, because the mean of its divisors is an integer number (1250374762).

Almost surely, 2^20203120323 is an apocalyptic number.

20203120323 is a deficient number, since it is larger than the sum of its proper divisors (9805873965).

20203120323 is a wasteful number, since it uses less digits than its factorization.

20203120323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76963 (or 76960 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20203120323 its reverse (32302130202), we get a palindrome (52505250525).

The spelling of 20203120323 in words is "twenty billion, two hundred three million, one hundred twenty thousand, three hundred twenty-three".