1321201234 has 8 divisors (see below), whose sum is σ = 1983483468. Its totient is φ = 660040080.

The previous prime is 1321201229. The next prime is 1321201237. The reversal of 1321201234 is 4321021231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1223250625 + 97950609 = 34975^2 + 9897^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1321201237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277317 + ... + 282040.

Almost surely, 2^1321201234 is an apocalyptic number.

1321201234 is a deficient number, since it is larger than the sum of its proper divisors (662282234).

1321201234 is a wasteful number, since it uses less digits than its factorization.

1321201234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560540.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1321201234 is about 36348.3319287144. The cubic root of 1321201234 is about 1097.2939639484.

Adding to 1321201234 its reverse (4321021231), we get a palindrome (5642222465).

The spelling of 1321201234 in words is "one billion, three hundred twenty-one million, two hundred one thousand, two hundred thirty-four".