2124423491 has 2 divisors, whose sum is σ = 2124423492. Its totient is φ = 2124423490.

The previous prime is 2124423409. The next prime is 2124423563. The reversal of 2124423491 is 1943244212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2124423491 - 2¹⁴ = 2124407107 is a prime.

It is a super-2 number, since 2×2124423491² = 9026350338225254162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2124422491) 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, 1062211745 + 1062211746.

It is an arithmetic number, because the mean of its divisors is an integer number (1062211746).

Almost surely, 2^2124423491 is an apocalyptic number.

2124423491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124423491 is an equidigital number, since it uses as much as digits as its factorization.

2124423491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 2124423491 is about 46091.4687442264. The cubic root of 2124423491 is about 1285.5245207367.

The spelling of 2124423491 in words is "two billion, one hundred twenty-four million, four hundred twenty-three thousand, four hundred ninety-one".