32121010 has 8 divisors (see below), whose sum is σ = 57817836. Its totient is φ = 12848400.

The previous prime is 32120993. The next prime is 32121029. The reversal of 32121010 is 1012123.

32121010 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 31102929 + 1018081 = 5577^2 + 1009^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 3212101 = 32121010 / (3 + 2 + 1 + 2 + 1 + 0 + 1 + 0).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1606041 + ... + 1606060.

Almost surely, 2^32121010 is an apocalyptic number.

32121010 is a deficient number, since it is larger than the sum of its proper divisors (25696826).

32121010 is a wasteful number, since it uses less digits than its factorization.

32121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212108.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 32121010 is about 5667.5400307364. The cubic root of 32121010 is about 317.8798974218.

Adding to 32121010 its reverse (1012123), we get a palindrome (33133133).

The spelling of 32121010 in words is "thirty-two million, one hundred twenty-one thousand, ten".