320342041157 has 2 divisors, whose sum is σ = 320342041158. Its totient is φ = 320342041156.

The previous prime is 320342041079. The next prime is 320342041171. The reversal of 320342041157 is 751140243023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 257334012961 + 63008028196 = 507281^2 + 251014^2 .

It is a cyclic number.

It is not a de Polignac number, because 320342041157 - 2¹⁸ = 320341779013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320342041457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160171020578 + 160171020579.

It is an arithmetic number, because the mean of its divisors is an integer number (160171020579).

Almost surely, 2^320342041157 is an apocalyptic number.

It is an amenable number.

320342041157 is a deficient number, since it is larger than the sum of its proper divisors (1).

320342041157 is an equidigital number, since it uses as much as digits as its factorization.

320342041157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 320342041157 in words is "three hundred twenty billion, three hundred forty-two million, forty-one thousand, one hundred fifty-seven".