1401101321 has 2 divisors, whose sum is σ = 1401101322. Its totient is φ = 1401101320.

The previous prime is 1401101309. The next prime is 1401101381. The reversal of 1401101321 is 1231011041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1328238025 + 72863296 = 36445^2 + 8536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401101321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1401101296 and 1401101305.

It is not a weakly prime, because it can be changed into another prime (1401101381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700550660 + 700550661.

It is an arithmetic number, because the mean of its divisors is an integer number (700550661).

Almost surely, 2^1401101321 is an apocalyptic number.

It is an amenable number.

1401101321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401101321 is an equidigital number, since it uses as much as digits as its factorization.

1401101321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1401101321 is about 37431.2879954725. The cubic root of 1401101321 is about 1118.9822070104.

Adding to 1401101321 its reverse (1231011041), we get a palindrome (2632112362).

The spelling of 1401101321 in words is "one billion, four hundred one million, one hundred one thousand, three hundred twenty-one".