1031131224401 has 2 divisors, whose sum is σ = 1031131224402. Its totient is φ = 1031131224400.

The previous prime is 1031131224377. The next prime is 1031131224439. The reversal of 1031131224401 is 1044221311301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 986295279376 + 44835945025 = 993124^2 + 211745^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031131224401 - 2¹⁰ = 1031131223377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1031131221401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515565612200 + 515565612201.

It is an arithmetic number, because the mean of its divisors is an integer number (515565612201).

Almost surely, 2^{1031131224401} is an apocalyptic number.

It is an amenable number.

1031131224401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031131224401 is an equidigital number, since it uses as much as digits as its factorization.

1031131224401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1031131224401 its reverse (1044221311301), we get a palindrome (2075352535702).

The spelling of 1031131224401 in words is "one trillion, thirty-one billion, one hundred thirty-one million, two hundred twenty-four thousand, four hundred one".