31240201222133 has 2 divisors, whose sum is σ = 31240201222134. Its totient is φ = 31240201222132.

The previous prime is 31240201222037. The next prime is 31240201222163. The reversal of 31240201222133 is 33122210204213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30414761741764 + 825439480369 = 5514958^2 + 908537^2 .

It is a cyclic number.

It is not a de Polignac number, because 31240201222133 - 2¹⁶ = 31240201156597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31240201222163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15620100611066 + 15620100611067.

It is an arithmetic number, because the mean of its divisors is an integer number (15620100611067).

Almost surely, 2^{31240201222133} is an apocalyptic number.

It is an amenable number.

31240201222133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31240201222133 is an equidigital number, since it uses as much as digits as its factorization.

31240201222133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31240201222133 its reverse (33122210204213), we get a palindrome (64362411426346).

The spelling of 31240201222133 in words is "thirty-one trillion, two hundred forty billion, two hundred one million, two hundred twenty-two thousand, one hundred thirty-three".