1081401070381 has 2 divisors, whose sum is σ = 1081401070382. Its totient is φ = 1081401070380.

The previous prime is 1081401070363. The next prime is 1081401070417. The reversal of 1081401070381 is 1830701041801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 805445221156 + 275955849225 = 897466^2 + 525315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081401070381 is a prime.

It is a super-2 number, since 2×1081401070381² (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 (1081401071381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540700535190 + 540700535191.

It is an arithmetic number, because the mean of its divisors is an integer number (540700535191).

Almost surely, 2^{1081401070381} is an apocalyptic number.

It is an amenable number.

1081401070381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081401070381 is an equidigital number, since it uses as much as digits as its factorization.

1081401070381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 34.

The spelling of 1081401070381 in words is "one trillion, eighty-one billion, four hundred one million, seventy thousand, three hundred eighty-one".