320211355154 has 4 divisors (see below), whose sum is σ = 480317032734. Its totient is φ = 160105677576.

The previous prime is 320211355153. The next prime is 320211355181. The reversal of 320211355154 is 451553112023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 278544339529 + 41667015625 = 527773^2 + 204125^2 .

It is a super-2 number, since 2×320211355154² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320211355154.

It is not an unprimeable number, because it can be changed into a prime (320211355153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80052838787 + ... + 80052838790.

Almost surely, 2^320211355154 is an apocalyptic number.

320211355154 is a deficient number, since it is larger than the sum of its proper divisors (160105677580).

320211355154 is a wasteful number, since it uses less digits than its factorization.

320211355154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160105677579.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 320211355154 its reverse (451553112023), we get a palindrome (771764467177).

The spelling of 320211355154 in words is "three hundred twenty billion, two hundred eleven million, three hundred fifty-five thousand, one hundred fifty-four".