31303311365453 has 2 divisors, whose sum is σ = 31303311365454. Its totient is φ = 31303311365452.

The previous prime is 31303311365429. The next prime is 31303311365461. The reversal of 31303311365453 is 35456311330313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15783036547369 + 15520274818084 = 3972787^2 + 3939578^2 .

It is a cyclic number.

It is not a de Polignac number, because 31303311365453 - 2¹⁴ = 31303311349069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31303311365453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31303311365353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651655682726 + 15651655682727.

It is an arithmetic number, because the mean of its divisors is an integer number (15651655682727).

Almost surely, 2^{31303311365453} is an apocalyptic number.

It is an amenable number.

31303311365453 is a deficient number, since it is larger than the sum of its proper divisors (1).

31303311365453 is an equidigital number, since it uses as much as digits as its factorization.

31303311365453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 437400, while the sum is 41.

Adding to 31303311365453 its reverse (35456311330313), we get a palindrome (66759622695766).

The spelling of 31303311365453 in words is "thirty-one trillion, three hundred three billion, three hundred eleven million, three hundred sixty-five thousand, four hundred fifty-three".