1023205001403 has 8 divisors (see below), whose sum is σ = 1469217437968. Its totient is φ = 629664616224.

The previous prime is 1023205001387. The next prime is 1023205001431. The reversal of 1023205001403 is 3041005023201.

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

It is not a de Polignac number, because 1023205001403 - 2⁴ = 1023205001387 is a prime.

It is a super-2 number, since 2×1023205001403² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023205001403.

It is not an unprimeable number, because it can be changed into a prime (1023205001003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13118012800 + ... + 13118012877.

It is an arithmetic number, because the mean of its divisors is an integer number (183652179746).

Almost surely, 2^{1023205001403} is an apocalyptic number.

1023205001403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1023205001403 is a deficient number, since it is larger than the sum of its proper divisors (446012436565).

1023205001403 is a wasteful number, since it uses less digits than its factorization.

1023205001403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26236025693.

The product of its (nonzero) digits is 720, while the sum is 21.

The spelling of 1023205001403 in words is "one trillion, twenty-three billion, two hundred five million, one thousand, four hundred three".