1201522323 has 32 divisors (see below), whose sum is σ = 1786060800. Its totient is φ = 714976416.

The previous prime is 1201522321. The next prime is 1201522327. The reversal of 1201522323 is 3232251021.

It is not a de Polignac number, because 1201522323 - 2¹ = 1201522321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201522323.

It is not an unprimeable number, because it can be changed into a prime (1201522321) 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 in 31 ways as a sum of consecutive naturals, for example, 80998 + ... + 94676.

It is an arithmetic number, because the mean of its divisors is an integer number (55814400).

Almost surely, 2^1201522323 is an apocalyptic number.

1201522323 is a deficient number, since it is larger than the sum of its proper divisors (584538477).

1201522323 is a wasteful number, since it uses less digits than its factorization.

1201522323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13791.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1201522323 is about 34662.9820269405. The cubic root of 1201522323 is about 1063.1077430676.

Adding to 1201522323 its reverse (3232251021), we get a palindrome (4433773344).

The spelling of 1201522323 in words is "one billion, two hundred one million, five hundred twenty-two thousand, three hundred twenty-three".