31101313853 has 2 divisors, whose sum is σ = 31101313854. Its totient is φ = 31101313852.

The previous prime is 31101313847. The next prime is 31101313909. The reversal of 31101313853 is 35831310113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22268697529 + 8832616324 = 149227^2 + 93982^2 .

It is a cyclic number.

It is not a de Polignac number, because 31101313853 - 2⁸ = 31101313597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31101313553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550656926 + 15550656927.

It is an arithmetic number, because the mean of its divisors is an integer number (15550656927).

Almost surely, 2^31101313853 is an apocalyptic number.

It is an amenable number.

31101313853 is a deficient number, since it is larger than the sum of its proper divisors (1).

31101313853 is an equidigital number, since it uses as much as digits as its factorization.

31101313853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

Adding to 31101313853 its reverse (35831310113), we get a palindrome (66932623966).

The spelling of 31101313853 in words is "thirty-one billion, one hundred one million, three hundred thirteen thousand, eight hundred fifty-three".