11420454019 has 24 divisors (see below), whose sum is σ = 12689831952. Its totient is φ = 10267246080.

The previous prime is 11420454007. The next prime is 11420454029. The reversal of 11420454019 is 91045402411.

It is not a de Polignac number, because 11420454019 - 2⁹ = 11420453507 is a prime.

It is a super-2 number, since 2×11420454019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11420454029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5729287 + ... + 5731279.

It is an arithmetic number, because the mean of its divisors is an integer number (528742998).

Almost surely, 2^11420454019 is an apocalyptic number.

11420454019 is a deficient number, since it is larger than the sum of its proper divisors (1269377933).

11420454019 is a wasteful number, since it uses less digits than its factorization.

11420454019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887 (or 2874 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 11420454019 in words is "eleven billion, four hundred twenty million, four hundred fifty-four thousand, nineteen".