21031202311300 has 36 divisors (see below), whose sum is σ = 45646097939316. Its totient is φ = 8410934579200.

The previous prime is 21031202311211. The next prime is 21031202311307. The reversal of 21031202311300 is 311320213012.

It can be written as a sum of positive squares in 6 ways, for example, as 193584160324 + 20837618150976 = 439982^2 + 4564824^2 .

It is a super-2 number, since 2×21031202311300² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21031202311307) 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, 18782497 + ... + 19870696.

It is an arithmetic number, because the mean of its divisors is an integer number (1267947164981).

Almost surely, 2^{21031202311300} is an apocalyptic number.

21031202311300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21031202311300 is an abundant number, since it is smaller than the sum of its proper divisors (24614895628016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21031202311300 is a wasteful number, since it uses less digits than its factorization.

21031202311300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38658648 (or 38658641 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21031202311300 its reverse (311320213012), we get a palindrome (21342522524312).

The spelling of 21031202311300 in words is "twenty-one trillion, thirty-one billion, two hundred two million, three hundred eleven thousand, three hundred".