1071081371943 has 24 divisors (see below), whose sum is σ = 1687823813520. Its totient is φ = 649117445760.

The previous prime is 1071081371929. The next prime is 1071081371947. The reversal of 1071081371943 is 3491731801701.

1071081371943 is a `hidden beast` number, since 107 + 10 + 81 + 371 + 94 + 3 = 666.

It is not a de Polignac number, because 1071081371943 - 2⁶ = 1071081371879 is a prime.

It is a super-2 number, since 2×1071081371943² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071081371947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2897953 + ... + 3246581.

It is an arithmetic number, because the mean of its divisors is an integer number (70325992230).

Almost surely, 2^{1071081371943} is an apocalyptic number.

1071081371943 is a deficient number, since it is larger than the sum of its proper divisors (616742441577).

1071081371943 is a wasteful number, since it uses less digits than its factorization.

1071081371943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379679 (or 379676 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 1071081371943 in words is "one trillion, seventy-one billion, eighty-one million, three hundred seventy-one thousand, nine hundred forty-three".