303213312121969 has 2 divisors, whose sum is σ = 303213312121970. Its totient is φ = 303213312121968.

The previous prime is 303213312121913. The next prime is 303213312122051. The reversal of 303213312121969 is 969121213312303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212314478130225 + 90898833991744 = 14571015^2 + 9534088^2 .

It is a cyclic number.

It is not a de Polignac number, because 303213312121969 - 2¹⁵ = 303213312089201 is a prime.

It is a super-2 number, since 2×303213312121969² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (303313312121969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151606656060984 + 151606656060985.

It is an arithmetic number, because the mean of its divisors is an integer number (151606656060985).

Almost surely, 2^{303213312121969} is an apocalyptic number.

It is an amenable number.

303213312121969 is a deficient number, since it is larger than the sum of its proper divisors (1).

303213312121969 is an equidigital number, since it uses as much as digits as its factorization.

303213312121969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 46.

The spelling of 303213312121969 in words is "three hundred three trillion, two hundred thirteen billion, three hundred twelve million, one hundred twenty-one thousand, nine hundred sixty-nine".