311132101013 has 4 divisors (see below), whose sum is σ = 311617487148. Its totient is φ = 310646714880.

The previous prime is 311132100949. The next prime is 311132101037. The reversal of 311132101013 is 310101231113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 298141116529 + 12990984484 = 546023^2 + 113978^2 .

It is a cyclic number.

It is not a de Polignac number, because 311132101013 - 2⁶ = 311132100949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311132100982 and 311132101000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311132101043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242692106 + ... + 242693387.

It is an arithmetic number, because the mean of its divisors is an integer number (77904371787).

Almost surely, 2^311132101013 is an apocalyptic number.

It is an amenable number.

311132101013 is a deficient number, since it is larger than the sum of its proper divisors (485386135).

311132101013 is an equidigital number, since it uses as much as digits as its factorization.

311132101013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485386134.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 311132101013 its reverse (310101231113), we get a palindrome (621233332126).

The spelling of 311132101013 in words is "three hundred eleven billion, one hundred thirty-two million, one hundred one thousand, thirteen".