11100978043 has 2 divisors, whose sum is σ = 11100978044. Its totient is φ = 11100978042.

The previous prime is 11100978017. The next prime is 11100978047. The reversal of 11100978043 is 34087900111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11100978043 - 2²⁹ = 10564107131 is a prime.

It is a super-2 number, since 2×11100978043² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11100978047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550489021 + 5550489022.

It is an arithmetic number, because the mean of its divisors is an integer number (5550489022).

Almost surely, 2^11100978043 is an apocalyptic number.

11100978043 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100978043 is an equidigital number, since it uses as much as digits as its factorization.

11100978043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 11100978043 in words is "eleven billion, one hundred million, nine hundred seventy-eight thousand, forty-three".