23203210321211 has 4 divisors (see below), whose sum is σ = 24212045552592. Its totient is φ = 22194375089832.

The previous prime is 23203210321183. The next prime is 23203210321217. The reversal of 23203210321211 is 11212301230232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23203210321211 - 2³⁴ = 23186030452027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1008835231357 = 23203210321211 / (2 + 3 + 2 + 0 + 3 + 2 + 1 + 0 + 3 + 2 + 1 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23203210321217) 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, 504417615656 + ... + 504417615701.

It is an arithmetic number, because the mean of its divisors is an integer number (6053011388148).

Almost surely, 2^{23203210321211} is an apocalyptic number.

23203210321211 is a deficient number, since it is larger than the sum of its proper divisors (1008835231381).

23203210321211 is a wasteful number, since it uses less digits than its factorization.

23203210321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008835231380.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23203210321211 its reverse (11212301230232), we get a palindrome (34415511551443).

The spelling of 23203210321211 in words is "twenty-three trillion, two hundred three billion, two hundred ten million, three hundred twenty-one thousand, two hundred eleven".