1211322023 has 8 divisors (see below), whose sum is σ = 1246544640. Its totient is φ = 1176493240.

The previous prime is 1211322019. The next prime is 1211322037. The reversal of 1211322023 is 3202231121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1211322023 - 2² = 1211322019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211321992 and 1211322010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211322043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92213 + ... + 104526.

It is an arithmetic number, because the mean of its divisors is an integer number (155818080).

Almost surely, 2^1211322023 is an apocalyptic number.

1211322023 is a deficient number, since it is larger than the sum of its proper divisors (35222617).

1211322023 is a wasteful number, since it uses less digits than its factorization.

1211322023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196917.

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

The square root of 1211322023 is about 34804.0518187179. The cubic root of 1211322023 is about 1065.9901810969.

Adding to 1211322023 its reverse (3202231121), we get a palindrome (4413553144).

The spelling of 1211322023 in words is "one billion, two hundred eleven million, three hundred twenty-two thousand, twenty-three".