1121311098 has 24 divisors (see below), whose sum is σ = 2462791188. Its totient is φ = 368649792.

The previous prime is 1121311097. The next prime is 1121311133. The reversal of 1121311098 is 8901131211.

It can be written as a sum of positive squares in 2 ways, for example, as 1121111289 + 199809 = 33483^2 + 447^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121311097) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 425365 + ... + 427992.

Almost surely, 2^1121311098 is an apocalyptic number.

1121311098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1121311098 is an abundant number, since it is smaller than the sum of its proper divisors (1341480090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121311098 is a wasteful number, since it uses less digits than its factorization.

1121311098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853438 (or 853435 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 1121311098 is about 33485.9836050847. The cubic root of 1121311098 is about 1038.9038926247.

The spelling of 1121311098 in words is "one billion, one hundred twenty-one million, three hundred eleven thousand, ninety-eight".