320121023203 has 2 divisors, whose sum is σ = 320121023204. Its totient is φ = 320121023202.

The previous prime is 320121023179. The next prime is 320121023221. The reversal of 320121023203 is 302320121023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320121023203 - 2⁵ = 320121023171 is a prime.

It is not a weakly prime, because it can be changed into another prime (320121023263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160060511601 + 160060511602.

It is an arithmetic number, because the mean of its divisors is an integer number (160060511602).

Almost surely, 2^320121023203 is an apocalyptic number.

320121023203 is a deficient number, since it is larger than the sum of its proper divisors (1).

320121023203 is an equidigital number, since it uses as much as digits as its factorization.

320121023203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 320121023203 its reverse (302320121023), we get a palindrome (622441144226).

The spelling of 320121023203 in words is "three hundred twenty billion, one hundred twenty-one million, twenty-three thousand, two hundred three".