1402323121 has 2 divisors, whose sum is σ = 1402323122. Its totient is φ = 1402323120.

The previous prime is 1402323113. The next prime is 1402323163. The reversal of 1402323121 is 1213232041.

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., 1032722496 + 369600625 = 32136^2 + 19225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402323121 - 2³ = 1402323113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1402323721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701161560 + 701161561.

It is an arithmetic number, because the mean of its divisors is an integer number (701161561).

Almost surely, 2^1402323121 is an apocalyptic number.

It is an amenable number.

1402323121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402323121 is an equidigital number, since it uses as much as digits as its factorization.

1402323121 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 1402323121 is about 37447.6050102006. The cubic root of 1402323121 is about 1119.3073738936.

Adding to 1402323121 its reverse (1213232041), we get a palindrome (2615555162).

The spelling of 1402323121 in words is "one billion, four hundred two million, three hundred twenty-three thousand, one hundred twenty-one".