1330120100 has 54 divisors (see below), whose sum is σ = 2982688002. Its totient is φ = 514848000.

The previous prime is 1330120081. The next prime is 1330120117. The reversal of 1330120100 is 10210331.

It can be written as a sum of positive squares in 3 ways, for example, as 32535616 + 1297584484 = 5704^2 + 36022^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 89180 + ... + 103020.

It is an arithmetic number, because the mean of its divisors is an integer number (55234963).

Almost surely, 2^1330120100 is an apocalyptic number.

1330120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1330120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1491344001).

1330120100 is an abundant number, since it is smaller than the sum of its proper divisors (1652567902).

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

1330120100 is a wasteful number, since it uses less digits than its factorization.

1330120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13917 (or 13879 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1330120100 is about 36470.8116169630. The cubic root of 1330120100 is about 1099.7575498715.

Adding to 1330120100 its reverse (10210331), we get a palindrome (1340330431).

The spelling of 1330120100 in words is "one billion, three hundred thirty million, one hundred twenty thousand, one hundred".