78022120003 has 2 divisors, whose sum is σ = 78022120004. Its totient is φ = 78022120002.

The previous prime is 78022119991. The next prime is 78022120021. The reversal of 78022120003 is 30002122087.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78022120003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78022120003.

It is not a weakly prime, because it can be changed into another prime (78022120703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39011060001 + 39011060002.

It is an arithmetic number, because the mean of its divisors is an integer number (39011060002).

Almost surely, 2^78022120003 is an apocalyptic number.

78022120003 is a deficient number, since it is larger than the sum of its proper divisors (1).

78022120003 is an equidigital number, since it uses as much as digits as its factorization.

78022120003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

It can be divided in two parts, 78022 and 120003, that added together give a square (198025 = 445²).

The spelling of 78022120003 in words is "seventy-eight billion, twenty-two million, one hundred twenty thousand, three".