1402323023 has 4 divisors (see below), whose sum is σ = 1404147360. Its totient is φ = 1400498688.

The previous prime is 1402323019. The next prime is 1402323029. The reversal of 1402323023 is 3203232041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3203232041 = 233 ⋅13747777.

It is a cyclic number.

It is not a de Polignac number, because 1402323023 - 2² = 1402323019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1402322986 and 1402323004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402323029) 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, 911015 + ... + 912552.

It is an arithmetic number, because the mean of its divisors is an integer number (351036840).

Almost surely, 2^1402323023 is an apocalyptic number.

1402323023 is a deficient number, since it is larger than the sum of its proper divisors (1824337).

1402323023 is an equidigital number, since it uses as much as digits as its factorization.

1402323023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824336.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1402323023 is about 37447.6037017057. The cubic root of 1402323023 is about 1119.3073478197.

Adding to 1402323023 its reverse (3203232041), we get a palindrome (4605555064).

The spelling of 1402323023 in words is "one billion, four hundred two million, three hundred twenty-three thousand, twenty-three".