1211022323 has 16 divisors (see below), whose sum is σ = 1467525120. Its totient is φ = 976193856.

The previous prime is 1211022313. The next prime is 1211022341. The reversal of 1211022323 is 3232201121.

It is not a de Polignac number, because 1211022323 - 2⁸ = 1211022067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211022313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15011 + ... + 51452.

It is an arithmetic number, because the mean of its divisors is an integer number (91720320).

Almost surely, 2^1211022323 is an apocalyptic number.

1211022323 is a deficient number, since it is larger than the sum of its proper divisors (256502797).

1211022323 is a wasteful number, since it uses less digits than its factorization.

1211022323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66626.

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

The square root of 1211022323 is about 34799.7460191881. The cubic root of 1211022323 is about 1065.9022596351.

Adding to 1211022323 its reverse (3232201121), we get a palindrome (4443223444).

The spelling of 1211022323 in words is "one billion, two hundred eleven million, twenty-two thousand, three hundred twenty-three".