20203312001403 has 8 divisors (see below), whose sum is σ = 26937943270416. Its totient is φ = 13468777700000.

The previous prime is 20203312001387. The next prime is 20203312001441. The reversal of 20203312001403 is 30410021330202.

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

It is a cyclic number.

It is not a de Polignac number, because 20203312001403 - 2⁴ = 20203312001387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20203312001403.

It is not an unprimeable number, because it can be changed into a prime (20203312001603) 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, 23754348 + ... + 24590153.

It is an arithmetic number, because the mean of its divisors is an integer number (3367242908802).

Almost surely, 2^{20203312001403} is an apocalyptic number.

20203312001403 is a deficient number, since it is larger than the sum of its proper divisors (6734631269013).

20203312001403 is a wasteful number, since it uses less digits than its factorization.

20203312001403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48483805.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20203312001403 its reverse (30410021330202), we get a palindrome (50613333331605).

The spelling of 20203312001403 in words is "twenty trillion, two hundred three billion, three hundred twelve million, one thousand, four hundred three".