1121012130 has 128 divisors (see below), whose sum is σ = 3288936960. Its totient is φ = 238694400.

The previous prime is 1121012099. The next prime is 1121012131. The reversal of 1121012130 is 312101211.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121012131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 359016 + ... + 362124.

It is an arithmetic number, because the mean of its divisors is an integer number (25694820).

Almost surely, 2^1121012130 is an apocalyptic number.

1121012130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121012130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644468480).

1121012130 is an abundant number, since it is smaller than the sum of its proper divisors (2167924830).

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

1121012130 is a wasteful number, since it uses less digits than its factorization.

1121012130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1121012130 is about 33481.5192307637. The cubic root of 1121012130 is about 1038.8115523194.

Adding to 1121012130 its reverse (312101211), we get a palindrome (1433113341).

The spelling of 1121012130 in words is "one billion, one hundred twenty-one million, twelve thousand, one hundred thirty".