1118869051 has 2 divisors, whose sum is σ = 1118869052. Its totient is φ = 1118869050.

The previous prime is 1118869043. The next prime is 1118869091. The reversal of 1118869051 is 1509688111.

It is an a-pointer prime, because the next prime (1118869091) can be obtained adding 1118869051 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1118869051 - 2³ = 1118869043 is a prime.

It is the 33450-th Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 1118868995 and 1118869013.

It is not a weakly prime, because it can be changed into another prime (1118869091) by changing a digit.

It is a nontrivial repunit in base 33449.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559434525 + 559434526.

It is an arithmetic number, because the mean of its divisors is an integer number (559434526).

Almost surely, 2^1118869051 is an apocalyptic number.

1118869051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118869051 is an equidigital number, since it uses as much as digits as its factorization.

1118869051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 40.

The square root of 1118869051 is about 33449.5000112109. The cubic root of 1118869051 is about 1038.1491522905.

The spelling of 1118869051 in words is "one billion, one hundred eighteen million, eight hundred sixty-nine thousand, fifty-one".