1001121330 has 96 divisors (see below), whose sum is σ = 2796498432. Its totient is φ = 228405760.

The previous prime is 1001121323. The next prime is 1001121337. The reversal of 1001121330 is 331211001.

It is an interprime number because it is at equal distance from previous prime (1001121323) and next prime (1001121337).

It is not an unprimeable number, because it can be changed into a prime (1001121337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53599 + ... + 69821.

It is an arithmetic number, because the mean of its divisors is an integer number (29130192).

Almost surely, 2^1001121330 is an apocalyptic number.

1001121330 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 1001121330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1398249216).

1001121330 is an abundant number, since it is smaller than the sum of its proper divisors (1795377102).

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

1001121330 is a wasteful number, since it uses less digits than its factorization.

1001121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16272 (or 16261 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1001121330 is about 31640.5014182772. The cubic root of 1001121330 is about 1000.3736370446.

Adding to 1001121330 its reverse (331211001), we get a palindrome (1332332331).

The spelling of 1001121330 in words is "one billion, one million, one hundred twenty-one thousand, three hundred thirty".