21103131301 has 12 divisors (see below), whose sum is σ = 25340430720. Its totient is φ = 17504900280.

The previous prime is 21103131289. The next prime is 21103131311. The reversal of 21103131301 is 10313130112.

It is not a de Polignac number, because 21103131301 - 2⁷ = 21103131173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103131311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6944871 + ... + 6947908.

It is an arithmetic number, because the mean of its divisors is an integer number (2111702560).

Almost surely, 2^21103131301 is an apocalyptic number.

It is an amenable number.

21103131301 is a deficient number, since it is larger than the sum of its proper divisors (4237299419).

21103131301 is a wasteful number, since it uses less digits than its factorization.

21103131301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13892824 (or 13892817 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 21103131301 its reverse (10313130112), we get a palindrome (31416261413).

The spelling of 21103131301 in words is "twenty-one billion, one hundred three million, one hundred thirty-one thousand, three hundred one".