1122011623 has 2 divisors, whose sum is σ = 1122011624. Its totient is φ = 1122011622.

The previous prime is 1122011621. The next prime is 1122011633. The reversal of 1122011623 is 3261102211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1122011623 - 2¹ = 1122011621 is a prime.

Together with 1122011621, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1122011623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122011621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561005811 + 561005812.

It is an arithmetic number, because the mean of its divisors is an integer number (561005812).

Almost surely, 2^1122011623 is an apocalyptic number.

1122011623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122011623 is an equidigital number, since it uses as much as digits as its factorization.

1122011623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1122011623 is about 33496.4419453768. The cubic root of 1122011623 is about 1039.1201949653.

Adding to 1122011623 its reverse (3261102211), we get a palindrome (4383113834).

The spelling of 1122011623 in words is "one billion, one hundred twenty-two million, eleven thousand, six hundred twenty-three".