157321432703 has 2 divisors, whose sum is σ = 157321432704. Its totient is φ = 157321432702.

The previous prime is 157321432661. The next prime is 157321432721. The reversal of 157321432703 is 307234123751.

It is a happy number.

157321432703 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 157321432703 - 2¹⁶ = 157321367167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157321432783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78660716351 + 78660716352.

It is an arithmetic number, because the mean of its divisors is an integer number (78660716352).

Almost surely, 2^157321432703 is an apocalyptic number.

157321432703 is a deficient number, since it is larger than the sum of its proper divisors (1).

157321432703 is an equidigital number, since it uses as much as digits as its factorization.

157321432703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 157321432703 in words is "one hundred fifty-seven billion, three hundred twenty-one million, four hundred thirty-two thousand, seven hundred three".