262115401321 has 2 divisors, whose sum is σ = 262115401322. Its totient is φ = 262115401320.

The previous prime is 262115401309. The next prime is 262115401421. The reversal of 262115401321 is 123104511262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261934122025 + 181279296 = 511795^2 + 13464^2 .

It is a cyclic number.

It is not a de Polignac number, because 262115401321 - 2¹⁵ = 262115368553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 262115401321.

It is not a weakly prime, because it can be changed into another prime (262115401421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131057700660 + 131057700661.

It is an arithmetic number, because the mean of its divisors is an integer number (131057700661).

Almost surely, 2^262115401321 is an apocalyptic number.

It is an amenable number.

262115401321 is a deficient number, since it is larger than the sum of its proper divisors (1).

262115401321 is an equidigital number, since it uses as much as digits as its factorization.

262115401321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 262115401321 its reverse (123104511262), we get a palindrome (385219912583).

The spelling of 262115401321 in words is "two hundred sixty-two billion, one hundred fifteen million, four hundred one thousand, three hundred twenty-one".