71121110102 has 32 divisors (see below), whose sum is σ = 126759790080. Its totient is φ = 29293197120.

The previous prime is 71121110003. The next prime is 71121110113. The reversal of 71121110102 is 20101112117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886202 + ... + 963117.

It is an arithmetic number, because the mean of its divisors is an integer number (3961243440).

Almost surely, 2^71121110102 is an apocalyptic number.

71121110102 is a deficient number, since it is larger than the sum of its proper divisors (55638679978).

71121110102 is a wasteful number, since it uses less digits than its factorization.

71121110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849436.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 71121110102 its reverse (20101112117), we get a palindrome (91222222219).

The spelling of 71121110102 in words is "seventy-one billion, one hundred twenty-one million, one hundred ten thousand, one hundred two".