2211203231023 has 4 divisors (see below), whose sum is σ = 2211632846280. Its totient is φ = 2210773615768.

The previous prime is 2211203230967. The next prime is 2211203231051. The reversal of 2211203231023 is 3201323021122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211203231023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211203230985 and 2211203231003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211203231123) 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, 214799908 + ... + 214810201.

It is an arithmetic number, because the mean of its divisors is an integer number (552908211570).

Almost surely, 2^{2211203231023} is an apocalyptic number.

2211203231023 is a deficient number, since it is larger than the sum of its proper divisors (429615257).

2211203231023 is an equidigital number, since it uses as much as digits as its factorization.

2211203231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429615256.

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

Adding to 2211203231023 its reverse (3201323021122), we get a palindrome (5412526252145).

The spelling of 2211203231023 in words is "two trillion, two hundred eleven billion, two hundred three million, two hundred thirty-one thousand, twenty-three".