1831258011481 has 2 divisors, whose sum is σ = 1831258011482. Its totient is φ = 1831258011480.

The previous prime is 1831258011469. The next prime is 1831258011487. The reversal of 1831258011481 is 1841108521381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1801275357456 + 29982654025 = 1342116^2 + 173155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1831258011481 - 2⁹ = 1831258010969 is a prime.

It is a super-2 number, since 2×1831258011481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1831258011487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915629005740 + 915629005741.

It is an arithmetic number, because the mean of its divisors is an integer number (915629005741).

Almost surely, 2^{1831258011481} is an apocalyptic number.

It is an amenable number.

1831258011481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1831258011481 is an equidigital number, since it uses as much as digits as its factorization.

1831258011481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 43.

The spelling of 1831258011481 in words is "one trillion, eight hundred thirty-one billion, two hundred fifty-eight million, eleven thousand, four hundred eighty-one".