315231131003 has 2 divisors, whose sum is σ = 315231131004. Its totient is φ = 315231131002.

The previous prime is 315231130961. The next prime is 315231131071. The reversal of 315231131003 is 300131132513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315231131003 - 2¹⁰ = 315231129979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315231131003.

It is not a weakly prime, because it can be changed into another prime (315231134003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157615565501 + 157615565502.

It is an arithmetic number, because the mean of its divisors is an integer number (157615565502).

Almost surely, 2^315231131003 is an apocalyptic number.

315231131003 is a deficient number, since it is larger than the sum of its proper divisors (1).

315231131003 is an equidigital number, since it uses as much as digits as its factorization.

315231131003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 315231131003 its reverse (300131132513), we get a palindrome (615362263516).

The spelling of 315231131003 in words is "three hundred fifteen billion, two hundred thirty-one million, one hundred thirty-one thousand, three".