31071102068 has 6 divisors (see below), whose sum is σ = 54374428626. Its totient is φ = 15535551032.

The previous prime is 31071102043. The next prime is 31071102071. The reversal of 31071102068 is 86020117013.

It can be written as a sum of positive squares in only one way, i.e., 28804199524 + 2266902544 = 169718^2 + 47612^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31071102068.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3883887755 + ... + 3883887762.

It is an arithmetic number, because the mean of its divisors is an integer number (9062404771).

Almost surely, 2^31071102068 is an apocalyptic number.

It is an amenable number.

31071102068 is a deficient number, since it is larger than the sum of its proper divisors (23303326558).

31071102068 is a wasteful number, since it uses less digits than its factorization.

31071102068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7767775521 (or 7767775519 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 31071102068 in words is "thirty-one billion, seventy-one million, one hundred two thousand, sixty-eight".