871603031061 has 32 divisors (see below), whose sum is σ = 1562537652480. Its totient is φ = 468761292288.

The previous prime is 871603031029. The next prime is 871603031087. The reversal of 871603031061 is 160130306178.

It is not a de Polignac number, because 871603031061 - 2⁵ = 871603031029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871603031861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135633736 + ... + 135640161.

It is an arithmetic number, because the mean of its divisors is an integer number (48829301640).

Almost surely, 2^871603031061 is an apocalyptic number.

It is an amenable number.

871603031061 is a deficient number, since it is larger than the sum of its proper divisors (690934621419).

871603031061 is a wasteful number, since it uses less digits than its factorization.

871603031061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271273930 (or 271273924 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 871603031061 in words is "eight hundred seventy-one billion, six hundred three million, thirty-one thousand, sixty-one".