31036243061 has 16 divisors (see below), whose sum is σ = 32167888896. Its totient is φ = 29913030000.

The previous prime is 31036243039. The next prime is 31036243067. The reversal of 31036243061 is 16034263013.

It is a cyclic number.

It is not a de Polignac number, because 31036243061 - 2¹⁸ = 31035980917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31036243067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8689406 + ... + 8692976.

It is an arithmetic number, because the mean of its divisors is an integer number (2010493056).

Almost surely, 2^31036243061 is an apocalyptic number.

31036243061 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31036243061 is a deficient number, since it is larger than the sum of its proper divisors (1131645835).

31036243061 is a wasteful number, since it uses less digits than its factorization.

31036243061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664.

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 31036243061 in words is "thirty-one billion, thirty-six million, two hundred forty-three thousand, sixty-one".