78333051131 has 2 divisors, whose sum is σ = 78333051132. Its totient is φ = 78333051130.

The previous prime is 78333051103. The next prime is 78333051187. The reversal of 78333051131 is 13115033387.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78333051131 is a prime.

It is a super-2 number, since 2×78333051131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78333051091 and 78333051100.

It is not a weakly prime, because it can be changed into another prime (78333051191) 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 as a sum of consecutive naturals, namely, 39166525565 + 39166525566.

It is an arithmetic number, because the mean of its divisors is an integer number (39166525566).

Almost surely, 2^78333051131 is an apocalyptic number.

78333051131 is a deficient number, since it is larger than the sum of its proper divisors (1).

78333051131 is an equidigital number, since it uses as much as digits as its factorization.

78333051131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 78333051131 in words is "seventy-eight billion, three hundred thirty-three million, fifty-one thousand, one hundred thirty-one".