1325251023461 has 2 divisors, whose sum is σ = 1325251023462. Its totient is φ = 1325251023460.

The previous prime is 1325251023431. The next prime is 1325251023493. The reversal of 1325251023461 is 1643201525231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1143254931361 + 181996092100 = 1069231^2 + 426610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325251023461 - 2²² = 1325246829157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325251023431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662625511730 + 662625511731.

It is an arithmetic number, because the mean of its divisors is an integer number (662625511731).

Almost surely, 2^{1325251023461} is an apocalyptic number.

It is an amenable number.

1325251023461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325251023461 is an equidigital number, since it uses as much as digits as its factorization.

1325251023461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 1325251023461 its reverse (1643201525231), we get a palindrome (2968452548692).

The spelling of 1325251023461 in words is "one trillion, three hundred twenty-five billion, two hundred fifty-one million, twenty-three thousand, four hundred sixty-one".