11420623 has 2 divisors, whose sum is σ = 11420624. Its totient is φ = 11420622.

The previous prime is 11420621. The next prime is 11420639. The reversal of 11420623 is 32602411.

It is a weak prime.

It is an emirp because it is prime and its reverse (32602411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11420623 - 2¹ = 11420621 is a prime.

Together with 11420621, 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 11420623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11420621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710311 + 5710312.

It is an arithmetic number, because the mean of its divisors is an integer number (5710312).

Almost surely, 2^11420623 is an apocalyptic number.

11420623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11420623 is an equidigital number, since it uses as much as digits as its factorization.

11420623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 11420623 is about 3379.4412260017. The cubic root of 11420623 is about 225.1973445565.

The spelling of 11420623 in words is "eleven million, four hundred twenty thousand, six hundred twenty-three".