21311323202301 has 16 divisors (see below), whose sum is σ = 31221297569280. Its totient is φ = 12823032924720.

The previous prime is 21311323202297. The next prime is 21311323202447. The reversal of 21311323202301 is 10320232311312.

It is not a de Polignac number, because 21311323202301 - 2² = 21311323202297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21311323202101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2323008625 + ... + 2323017798.

It is an arithmetic number, because the mean of its divisors is an integer number (1951331098080).

Almost surely, 2^{21311323202301} is an apocalyptic number.

It is an amenable number.

21311323202301 is a deficient number, since it is larger than the sum of its proper divisors (9909974366979).

21311323202301 is a wasteful number, since it uses less digits than its factorization.

21311323202301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646026576.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21311323202301 its reverse (10320232311312), we get a palindrome (31631555513613).

The spelling of 21311323202301 in words is "twenty-one trillion, three hundred eleven billion, three hundred twenty-three million, two hundred two thousand, three hundred one".