11731602778203 has 32 divisors (see below), whose sum is σ = 19916818882560. Its totient is φ = 5964672310560.

The previous prime is 11731602778187. The next prime is 11731602778223. The reversal of 11731602778203 is 30287720613711.

It is not a de Polignac number, because 11731602778203 - 2⁴ = 11731602778187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11731602778223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 540267433 + ... + 540289146.

It is an arithmetic number, because the mean of its divisors is an integer number (622400590080).

Almost surely, 2^{11731602778203} is an apocalyptic number.

11731602778203 is a deficient number, since it is larger than the sum of its proper divisors (8185216104357).

11731602778203 is a wasteful number, since it uses less digits than its factorization.

11731602778203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080556647.

The product of its (nonzero) digits is 592704, while the sum is 48.

The spelling of 11731602778203 in words is "eleven trillion, seven hundred thirty-one billion, six hundred two million, seven hundred seventy-eight thousand, two hundred three".