32121256306 has 16 divisors (see below), whose sum is σ = 48592290816. Its totient is φ = 15923987856.

The previous prime is 32121256259. The next prime is 32121256309. The reversal of 32121256306 is 60365212123.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (32121256309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366045 + ... + 445231.

It is an arithmetic number, because the mean of its divisors is an integer number (3037018176).

Almost surely, 2^32121256306 is an apocalyptic number.

32121256306 is a deficient number, since it is larger than the sum of its proper divisors (16471034510).

32121256306 is a wasteful number, since it uses less digits than its factorization.

32121256306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80913.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 32121256306 its reverse (60365212123), we get a palindrome (92486468429).

The spelling of 32121256306 in words is "thirty-two billion, one hundred twenty-one million, two hundred fifty-six thousand, three hundred six".