1012012321 has 8 divisors (see below), whose sum is σ = 1019592000. Its totient is φ = 1004443440.

The previous prime is 1012012301. The next prime is 1012012367. The reversal of 1012012321 is 1232102101.

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

It is a cyclic number.

It is not a de Polignac number, because 1012012321 - 2⁵ = 1012012289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012012301) 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, 342870 + ... + 345808.

It is an arithmetic number, because the mean of its divisors is an integer number (127449000).

Almost surely, 2^1012012321 is an apocalyptic number.

It is an amenable number.

1012012321 is a deficient number, since it is larger than the sum of its proper divisors (7579679).

1012012321 is a wasteful number, since it uses less digits than its factorization.

1012012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1012012321 is about 31812.1410942426. The cubic root of 1012012321 is about 1003.9881802733.

Adding to 1012012321 its reverse (1232102101), we get a palindrome (2244114422).

The spelling of 1012012321 in words is "one billion, twelve million, twelve thousand, three hundred twenty-one".