10123311211 has 4 divisors (see below), whose sum is σ = 10902027472. Its totient is φ = 9344594952.

The previous prime is 10123311157. The next prime is 10123311217. The reversal of 10123311211 is 11211332101.

It is a happy number.

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 10123311211 - 2¹⁷ = 10123180139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123311217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389358111 + ... + 389358136.

It is an arithmetic number, because the mean of its divisors is an integer number (2725506868).

Almost surely, 2^10123311211 is an apocalyptic number.

10123311211 is a deficient number, since it is larger than the sum of its proper divisors (778716261).

10123311211 is an equidigital number, since it uses as much as digits as its factorization.

10123311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778716260.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10123311211 its reverse (11211332101), we get a palindrome (21334643312).

The spelling of 10123311211 in words is "ten billion, one hundred twenty-three million, three hundred eleven thousand, two hundred eleven".