31068253543 has 4 divisors (see below), whose sum is σ = 31078211248. Its totient is φ = 31058295840.

The previous prime is 31068253529. The next prime is 31068253549. The reversal of 31068253543 is 34535286013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34535286013 = 5879 ⋅5874347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31068253543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31068253496 and 31068253505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31068253549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4974171 + ... + 4980412.

It is an arithmetic number, because the mean of its divisors is an integer number (7769552812).

Almost surely, 2^31068253543 is an apocalyptic number.

31068253543 is a deficient number, since it is larger than the sum of its proper divisors (9957705).

31068253543 is an equidigital number, since it uses as much as digits as its factorization.

31068253543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9957704.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 31068253543 in words is "thirty-one billion, sixty-eight million, two hundred fifty-three thousand, five hundred forty-three".