313132121011 has 2 divisors, whose sum is σ = 313132121012. Its totient is φ = 313132121010.

The previous prime is 313132120979. The next prime is 313132121051. The reversal of 313132121011 is 110121231313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313132121011 - 2⁵ = 313132120979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313132121011.

It is not a weakly prime, because it can be changed into another prime (313132121051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156566060505 + 156566060506.

It is an arithmetic number, because the mean of its divisors is an integer number (156566060506).

Almost surely, 2^313132121011 is an apocalyptic number.

313132121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

313132121011 is an equidigital number, since it uses as much as digits as its factorization.

313132121011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 313132121011 its reverse (110121231313), we get a palindrome (423253352324).

The spelling of 313132121011 in words is "three hundred thirteen billion, one hundred thirty-two million, one hundred twenty-one thousand, eleven".