1211323007 has 2 divisors, whose sum is σ = 1211323008. Its totient is φ = 1211323006.

The previous prime is 1211322971. The next prime is 1211323031. The reversal of 1211323007 is 7003231121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211323007 - 2¹⁴ = 1211306623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211323007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211323097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605661503 + 605661504.

It is an arithmetic number, because the mean of its divisors is an integer number (605661504).

Almost surely, 2^1211323007 is an apocalyptic number.

1211323007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211323007 is an equidigital number, since it uses as much as digits as its factorization.

1211323007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1211323007 is about 34804.0659550001. The cubic root of 1211323007 is about 1065.9904697441.

Adding to 1211323007 its reverse (7003231121), we get a palindrome (8214554128).

The spelling of 1211323007 in words is "one billion, two hundred eleven million, three hundred twenty-three thousand, seven".