1121541098 has 4 divisors (see below), whose sum is σ = 1682311650. Its totient is φ = 560770548.

The previous prime is 1121541079. The next prime is 1121541103. The reversal of 1121541098 is 8901451211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8901451211 = 4357 ⋅2043023.

It can be written as a sum of positive squares in only one way, i.e., 1118032969 + 3508129 = 33437^2 + 1873^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280385273 + ... + 280385276.

Almost surely, 2^1121541098 is an apocalyptic number.

1121541098 is a deficient number, since it is larger than the sum of its proper divisors (560770552).

1121541098 is an equidigital number, since it uses as much as digits as its factorization.

1121541098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560770551.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1121541098 is about 33489.4177017159. The cubic root of 1121541098 is about 1038.9749200616.

The spelling of 1121541098 in words is "one billion, one hundred twenty-one million, five hundred forty-one thousand, ninety-eight".