10123320212 has 12 divisors (see below), whose sum is σ = 17716566420. Its totient is φ = 5061444096.

The previous prime is 10123320199. The next prime is 10123320247. The reversal of 10123320212 is 21202332101.

It can be written as a sum of positive squares in 2 ways, for example, as 9986804356 + 136515856 = 99934^2 + 11684^2 .

It is a super-2 number, since 2×10123320212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100658 + ... + 174294.

It is an arithmetic number, because the mean of its divisors is an integer number (1476380535).

Almost surely, 2^10123320212 is an apocalyptic number.

It is an amenable number.

10123320212 is a deficient number, since it is larger than the sum of its proper divisors (7593246208).

10123320212 is a wasteful number, since it uses less digits than its factorization.

10123320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108010 (or 108008 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10123320212 its reverse (21202332101), we get a palindrome (31325652313).

The spelling of 10123320212 in words is "ten billion, one hundred twenty-three million, three hundred twenty thousand, two hundred twelve".