304311132109 has 2 divisors, whose sum is σ = 304311132110. Its totient is φ = 304311132108.

The previous prime is 304311132091. The next prime is 304311132119. The reversal of 304311132109 is 901231113403.

Together with previous prime (304311132091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243833502025 + 60477630084 = 493795^2 + 245922^2 .

It is a cyclic number.

It is not a de Polignac number, because 304311132109 - 2⁷ = 304311131981 is a prime.

It is a super-2 number, since 2×304311132109² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304311132119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152155566054 + 152155566055.

It is an arithmetic number, because the mean of its divisors is an integer number (152155566055).

Almost surely, 2^304311132109 is an apocalyptic number.

It is an amenable number.

304311132109 is a deficient number, since it is larger than the sum of its proper divisors (1).

304311132109 is an equidigital number, since it uses as much as digits as its factorization.

304311132109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 304311132109 in words is "three hundred four billion, three hundred eleven million, one hundred thirty-two thousand, one hundred nine".