12155331703 has 2 divisors, whose sum is σ = 12155331704. Its totient is φ = 12155331702.

The previous prime is 12155331659. The next prime is 12155331733. The reversal of 12155331703 is 30713355121.

It is a happy number.

12155331703 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12155331703 - 2⁹ = 12155331191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12155331733) 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, 6077665851 + 6077665852.

It is an arithmetic number, because the mean of its divisors is an integer number (6077665852).

Almost surely, 2^12155331703 is an apocalyptic number.

12155331703 is a deficient number, since it is larger than the sum of its proper divisors (1).

12155331703 is an equidigital number, since it uses as much as digits as its factorization.

12155331703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 31.

Adding to 12155331703 its reverse (30713355121), we get a palindrome (42868686824).

The spelling of 12155331703 in words is "twelve billion, one hundred fifty-five million, three hundred thirty-one thousand, seven hundred three".