10423440203999 has 8 divisors (see below), whose sum is σ = 10470248082960. Its totient is φ = 10376643548736.

The previous prime is 10423440203989. The next prime is 10423440204013. The reversal of 10423440203999 is 99930204432401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10423440203999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10423440203909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941582 + ... + 4661915.

It is an arithmetic number, because the mean of its divisors is an integer number (1308781010370).

Almost surely, 2^{10423440203999} is an apocalyptic number.

10423440203999 is a deficient number, since it is larger than the sum of its proper divisors (46807878961).

10423440203999 is an equidigital number, since it uses as much as digits as its factorization.

10423440203999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611849.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 10423440203999 in words is "ten trillion, four hundred twenty-three billion, four hundred forty million, two hundred three thousand, nine hundred ninety-nine".