83781148056031 has 2 divisors, whose sum is σ = 83781148056032. Its totient is φ = 83781148056030.

The previous prime is 83781148056019. The next prime is 83781148056103. The reversal of 83781148056031 is 13065084118738.

Together with next prime (83781148056103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83781148056031 - 2¹⁵ = 83781148023263 is a prime.

It is a super-3 number, since 3×83781148056031³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83781148156031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41890574028015 + 41890574028016.

It is an arithmetic number, because the mean of its divisors is an integer number (41890574028016).

Almost surely, 2^{83781148056031} is an apocalyptic number.

83781148056031 is a deficient number, since it is larger than the sum of its proper divisors (1).

83781148056031 is an equidigital number, since it uses as much as digits as its factorization.

83781148056031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 83781148056031 in words is "eighty-three trillion, seven hundred eighty-one billion, one hundred forty-eight million, fifty-six thousand, thirty-one".