1334401028381 has 2 divisors, whose sum is σ = 1334401028382. Its totient is φ = 1334401028380.

The previous prime is 1334401028371. The next prime is 1334401028393. The reversal of 1334401028381 is 1838201044331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 891598620025 + 442802408356 = 944245^2 + 665434^2 .

It is a cyclic number.

It is not a de Polignac number, because 1334401028381 - 2²² = 1334396834077 is a prime.

It is a super-2 number, since 2×1334401028381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1334401028371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667200514190 + 667200514191.

It is an arithmetic number, because the mean of its divisors is an integer number (667200514191).

Almost surely, 2^{1334401028381} is an apocalyptic number.

It is an amenable number.

1334401028381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1334401028381 is an equidigital number, since it uses as much as digits as its factorization.

1334401028381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 1334401028381 in words is "one trillion, three hundred thirty-four billion, four hundred one million, twenty-eight thousand, three hundred eighty-one".