31101230101 has 2 divisors, whose sum is σ = 31101230102. Its totient is φ = 31101230100.

The previous prime is 31101230059. The next prime is 31101230107. The reversal of 31101230101 is 10103210113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19490952100 + 11610278001 = 139610^2 + 107751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31101230101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31101230107) 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, 15550615050 + 15550615051.

It is an arithmetic number, because the mean of its divisors is an integer number (15550615051).

Almost surely, 2^31101230101 is an apocalyptic number.

It is an amenable number.

31101230101 is a deficient number, since it is larger than the sum of its proper divisors (1).

31101230101 is an equidigital number, since it uses as much as digits as its factorization.

31101230101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 31101230101 its reverse (10103210113), we get a palindrome (41204440214).

The spelling of 31101230101 in words is "thirty-one billion, one hundred one million, two hundred thirty thousand, one hundred one".