1212100323 has 32 divisors (see below), whose sum is σ = 1964404224. Its totient is φ = 648970752.

The previous prime is 1212100303. The next prime is 1212100333. The reversal of 1212100323 is 3230012121.

It is not a de Polignac number, because 1212100323 - 2⁶ = 1212100259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212100303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73561 + ... + 88517.

It is an arithmetic number, because the mean of its divisors is an integer number (61387632).

Almost surely, 2^1212100323 is an apocalyptic number.

1212100323 is a deficient number, since it is larger than the sum of its proper divisors (752303901).

1212100323 is a wasteful number, since it uses less digits than its factorization.

1212100323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15211.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1212100323 is about 34815.2311926835. The cubic root of 1212100323 is about 1066.2184392904.

Adding to 1212100323 its reverse (3230012121), we get a palindrome (4442112444).

The spelling of 1212100323 in words is "one billion, two hundred twelve million, one hundred thousand, three hundred twenty-three".