1381300000 has 144 divisors (see below), whose sum is σ = 3582895680. Its totient is φ = 522720000.

The previous prime is 1381299991. The next prime is 1381300001. The reversal of 1381300000 is 31831.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1381300001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1899637 + ... + 1900363.

It is an arithmetic number, because the mean of its divisors is an integer number (24881220).

Almost surely, 2^1381300000 is an apocalyptic number.

1381300000 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 1381300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791447840).

1381300000 is an abundant number, since it is smaller than the sum of its proper divisors (2201595680).

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

1381300000 is an frugal number, since it uses more digits than its factorization.

1381300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1381300000 is about 37165.8445350028. The cubic root of 1381300000 is about 1113.6857701504.

Adding to 1381300000 its reverse (31831), we get a palindrome (1381331831).

The spelling of 1381300000 in words is "one billion, three hundred eighty-one million, three hundred thousand".