1400021323 has 2 divisors, whose sum is σ = 1400021324. Its totient is φ = 1400021322.

The previous prime is 1400021321. The next prime is 1400021333. The reversal of 1400021323 is 3231200041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1400021323 - 2¹ = 1400021321 is a prime.

Together with 1400021321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1400021297 and 1400021306.

It is not a weakly prime, because it can be changed into another prime (1400021321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700010661 + 700010662.

It is an arithmetic number, because the mean of its divisors is an integer number (700010662).

Almost surely, 2^1400021323 is an apocalyptic number.

1400021323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400021323 is an equidigital number, since it uses as much as digits as its factorization.

1400021323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1400021323 is about 37416.8588072275. The cubic root of 1400021323 is about 1118.6946215298.

Adding to 1400021323 its reverse (3231200041), we get a palindrome (4631221364).

The spelling of 1400021323 in words is "one billion, four hundred million, twenty-one thousand, three hundred twenty-three".