31061156116 has 12 divisors (see below), whose sum is σ = 54383853888. Its totient is φ = 15522912152.

The previous prime is 31061156111. The next prime is 31061156117. The reversal of 31061156116 is 61165116013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31061156111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1907356 + ... + 1923571.

It is an arithmetic number, because the mean of its divisors is an integer number (4531987824).

Almost surely, 2^31061156116 is an apocalyptic number.

It is an amenable number.

31061156116 is a deficient number, since it is larger than the sum of its proper divisors (23322697772).

31061156116 is a wasteful number, since it uses less digits than its factorization.

31061156116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832958 (or 3832956 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 31061156116 in words is "thirty-one billion, sixty-one million, one hundred fifty-six thousand, one hundred sixteen".