201131321003 has 4 divisors (see below), whose sum is σ = 202715032320. Its totient is φ = 199547609688.

The previous prime is 201131320979. The next prime is 201131321029. The reversal of 201131321003 is 300123131102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300123131102 = 2 ⋅150061565551.

It is a cyclic number.

It is not a de Polignac number, because 201131321003 - 2¹⁰ = 201131319979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201131321033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791855468 + ... + 791855721.

It is an arithmetic number, because the mean of its divisors is an integer number (50678758080).

Almost surely, 2^201131321003 is an apocalyptic number.

201131321003 is a deficient number, since it is larger than the sum of its proper divisors (1583711317).

201131321003 is a wasteful number, since it uses less digits than its factorization.

201131321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583711316.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 201131321003 its reverse (300123131102), we get a palindrome (501254452105).

The spelling of 201131321003 in words is "two hundred one billion, one hundred thirty-one million, three hundred twenty-one thousand, three".