1113921623 has 2 divisors, whose sum is σ = 1113921624. Its totient is φ = 1113921622.

The previous prime is 1113921587. The next prime is 1113921629. The reversal of 1113921623 is 3261293111.

It is a strong prime.

It is an emirp because it is prime and its reverse (3261293111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1113921623 - 2¹⁶ = 1113856087 is a prime.

It is a super-3 number, since 3×1113921623³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113921629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556960811 + 556960812.

It is an arithmetic number, because the mean of its divisors is an integer number (556960812).

Almost surely, 2^1113921623 is an apocalyptic number.

1113921623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113921623 is an equidigital number, since it uses as much as digits as its factorization.

1113921623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 29.

The square root of 1113921623 is about 33375.4643862823. The cubic root of 1113921623 is about 1036.6167247555.

The spelling of 1113921623 in words is "one billion, one hundred thirteen million, nine hundred twenty-one thousand, six hundred twenty-three".