1211312023 has 2 divisors, whose sum is σ = 1211312024. Its totient is φ = 1211312022.

The previous prime is 1211312017. The next prime is 1211312029. The reversal of 1211312023 is 3202131121.

It is a balanced prime because it is at equal distance from previous prime (1211312017) and next prime (1211312029).

It is a cyclic number.

It is not a de Polignac number, because 1211312023 - 2¹³ = 1211303831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211311988 and 1211312006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211312029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605656011 + 605656012.

It is an arithmetic number, because the mean of its divisors is an integer number (605656012).

Almost surely, 2^1211312023 is an apocalyptic number.

1211312023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211312023 is an equidigital number, since it uses as much as digits as its factorization.

1211312023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1211312023 is about 34803.9081569872. The cubic root of 1211312023 is about 1065.9872476818.

Adding to 1211312023 its reverse (3202131121), we get a palindrome (4413443144).

The spelling of 1211312023 in words is "one billion, two hundred eleven million, three hundred twelve thousand, twenty-three".