10420403402323 has 4 divisors (see below), whose sum is σ = 11033368308360. Its totient is φ = 9807438496288.

The previous prime is 10420403402317. The next prime is 10420403402329. The reversal of 10420403402323 is 32320430402401.

10420403402323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (10420403402317) and next prime (10420403402329).

It is a cyclic number.

It is not a de Polignac number, because 10420403402323 - 2³⁷ = 10282964448851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10420403402291 and 10420403402300.

It is not an unprimeable number, because it can be changed into a prime (10420403402329) 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, 306482452993 + ... + 306482453026.

It is an arithmetic number, because the mean of its divisors is an integer number (2758342077090).

Almost surely, 2^{10420403402323} is an apocalyptic number.

10420403402323 is a deficient number, since it is larger than the sum of its proper divisors (612964906037).

10420403402323 is an equidigital number, since it uses as much as digits as its factorization.

10420403402323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612964906036.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 10420403402323 its reverse (32320430402401), we get a palindrome (42740833804724).

The spelling of 10420403402323 in words is "ten trillion, four hundred twenty billion, four hundred three million, four hundred two thousand, three hundred twenty-three".