1322123401 has 2 divisors, whose sum is σ = 1322123402. Its totient is φ = 1322123400.

The previous prime is 1322123399. The next prime is 1322123419. The reversal of 1322123401 is 1043212231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1315948176 + 6175225 = 36276^2 + 2485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322123401 - 2¹ = 1322123399 is a prime.

Together with 1322123399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1322123801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661061700 + 661061701.

It is an arithmetic number, because the mean of its divisors is an integer number (661061701).

Almost surely, 2^1322123401 is an apocalyptic number.

It is an amenable number.

1322123401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322123401 is an equidigital number, since it uses as much as digits as its factorization.

1322123401 is an evil number, because the sum of its binary digits is even.

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

The square root of 1322123401 is about 36361.0148510737. The cubic root of 1322123401 is about 1097.5491995939.

Adding to 1322123401 its reverse (1043212231), we get a palindrome (2365335632).

The spelling of 1322123401 in words is "one billion, three hundred twenty-two million, one hundred twenty-three thousand, four hundred one".