31224344101 has 2 divisors, whose sum is σ = 31224344102. Its totient is φ = 31224344100.

The previous prime is 31224344087. The next prime is 31224344113. The reversal of 31224344101 is 10144342213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19124124100 + 12100220001 = 138290^2 + 110001^2 .

It is a cyclic number.

It is not a de Polignac number, because 31224344101 - 2⁷ = 31224343973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31224344191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15612172050 + 15612172051.

It is an arithmetic number, because the mean of its divisors is an integer number (15612172051).

Almost surely, 2^31224344101 is an apocalyptic number.

It is an amenable number.

31224344101 is a deficient number, since it is larger than the sum of its proper divisors (1).

31224344101 is an equidigital number, since it uses as much as digits as its factorization.

31224344101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31224344101 its reverse (10144342213), we get a palindrome (41368686314).

The spelling of 31224344101 in words is "thirty-one billion, two hundred twenty-four million, three hundred forty-four thousand, one hundred one".