1201402321 has 16 divisors (see below), whose sum is σ = 1413417600. Its totient is φ = 999613440.

The previous prime is 1201402261. The next prime is 1201402337. The reversal of 1201402321 is 1232041021.

It is not a de Polignac number, because 1201402321 - 2⁷ = 1201402193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201402295 and 1201402304.

It is not an unprimeable number, because it can be changed into a prime (1201402621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111126 + ... + 121456.

It is an arithmetic number, because the mean of its divisors is an integer number (88338600).

Almost surely, 2^1201402321 is an apocalyptic number.

It is an amenable number.

1201402321 is a deficient number, since it is larger than the sum of its proper divisors (212015279).

1201402321 is a wasteful number, since it uses less digits than its factorization.

1201402321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10824.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1201402321 is about 34661.2510016589. The cubic root of 1201402321 is about 1063.0723492730.

Adding to 1201402321 its reverse (1232041021), we get a palindrome (2433443342).

The spelling of 1201402321 in words is "one billion, two hundred one million, four hundred two thousand, three hundred twenty-one".