20403373600203 has 16 divisors (see below), whose sum is σ = 29904181160832. Its totient is φ = 12271286456000.

The previous prime is 20403373600199. The next prime is 20403373600213. The reversal of 20403373600203 is 30200637330402.

It is not a de Polignac number, because 20403373600203 - 2² = 20403373600199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20403373600213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2359858458 + ... + 2359867103.

It is an arithmetic number, because the mean of its divisors is an integer number (1869011322552).

Almost surely, 2^{20403373600203} is an apocalyptic number.

20403373600203 is a deficient number, since it is larger than the sum of its proper divisors (9500807560629).

20403373600203 is a wasteful number, since it uses less digits than its factorization.

20403373600203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4719725706.

The product of its (nonzero) digits is 54432, while the sum is 33.

The spelling of 20403373600203 in words is "twenty trillion, four hundred three billion, three hundred seventy-three million, six hundred thousand, two hundred three".