312011004240203 has 2 divisors, whose sum is σ = 312011004240204. Its totient is φ = 312011004240202.

The previous prime is 312011004240191. The next prime is 312011004240343. The reversal of 312011004240203 is 302042400110213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312011004240203 - 2²⁴ = 312010987462987 is a prime.

It is not a weakly prime, because it can be changed into another prime (312011004246203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156005502120101 + 156005502120102.

It is an arithmetic number, because the mean of its divisors is an integer number (156005502120102).

Almost surely, 2^{312011004240203} is an apocalyptic number.

312011004240203 is a deficient number, since it is larger than the sum of its proper divisors (1).

312011004240203 is an equidigital number, since it uses as much as digits as its factorization.

312011004240203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 312011004240203 its reverse (302042400110213), we get a palindrome (614053404350416).

The spelling of 312011004240203 in words is "three hundred twelve trillion, eleven billion, four million, two hundred forty thousand, two hundred three".