1303231209977 has 2 divisors, whose sum is σ = 1303231209978. Its totient is φ = 1303231209976.

The previous prime is 1303231209949. The next prime is 1303231209979. The reversal of 1303231209977 is 7799021323031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 979033070521 + 324198139456 = 989461^2 + 569384^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303231209977 - 2⁴⁰ = 203719582201 is a prime.

Together with 1303231209979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1303231209979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651615604988 + 651615604989.

It is an arithmetic number, because the mean of its divisors is an integer number (651615604989).

Almost surely, 2^{1303231209977} is an apocalyptic number.

It is an amenable number.

1303231209977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303231209977 is an equidigital number, since it uses as much as digits as its factorization.

1303231209977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 47.

The spelling of 1303231209977 in words is "one trillion, three hundred three billion, two hundred thirty-one million, two hundred nine thousand, nine hundred seventy-seven".