101311221303 has 24 divisors (see below), whose sum is σ = 151075731456. Its totient is φ = 65354850000.

The previous prime is 101311221287. The next prime is 101311221313. The reversal of 101311221303 is 303122113101.

101311221303 is a `hidden beast` number, since 10 + 131 + 1 + 221 + 303 = 666.

It is not a de Polignac number, because 101311221303 - 2⁴ = 101311221287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101311221313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3823326 + ... + 3849732.

It is an arithmetic number, because the mean of its divisors is an integer number (6294822144).

Almost surely, 2^101311221303 is an apocalyptic number.

101311221303 is a deficient number, since it is larger than the sum of its proper divisors (49764510153).

101311221303 is a wasteful number, since it uses less digits than its factorization.

101311221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40195 (or 40192 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 101311221303 its reverse (303122113101), we get a palindrome (404433334404).

The spelling of 101311221303 in words is "one hundred one billion, three hundred eleven million, two hundred twenty-one thousand, three hundred three".