320131903211 has 2 divisors, whose sum is σ = 320131903212. Its totient is φ = 320131903210.

The previous prime is 320131903171. The next prime is 320131903229. The reversal of 320131903211 is 112309131023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320131903211 - 2³⁸ = 45253996267 is a prime.

It is a super-2 number, since 2×320131903211² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320131903261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160065951605 + 160065951606.

It is an arithmetic number, because the mean of its divisors is an integer number (160065951606).

Almost surely, 2^320131903211 is an apocalyptic number.

320131903211 is a deficient number, since it is larger than the sum of its proper divisors (1).

320131903211 is an equidigital number, since it uses as much as digits as its factorization.

320131903211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 320131903211 in words is "three hundred twenty billion, one hundred thirty-one million, nine hundred three thousand, two hundred eleven".