23211030220213 has 4 divisors (see below), whose sum is σ = 25321123876608. Its totient is φ = 21100936563820.

The previous prime is 23211030220187. The next prime is 23211030220249. The reversal of 23211030220213 is 31202203011232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23211030220213 is a prime.

It is a super-2 number, since 2×23211030220213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211030220913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055046828181 + ... + 1055046828202.

It is an arithmetic number, because the mean of its divisors is an integer number (6330280969152).

Almost surely, 2^{23211030220213} is an apocalyptic number.

It is an amenable number.

23211030220213 is a deficient number, since it is larger than the sum of its proper divisors (2110093656395).

23211030220213 is a wasteful number, since it uses less digits than its factorization.

23211030220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110093656394.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 23211030220213 its reverse (31202203011232), we get a palindrome (54413233231445).

The spelling of 23211030220213 in words is "twenty-three trillion, two hundred eleven billion, thirty million, two hundred twenty thousand, two hundred thirteen".