1301213320 has 128 divisors (see below), whose sum is σ = 3429527040. Its totient is φ = 439050240.

The previous prime is 1301213311. The next prime is 1301213323. The reversal of 1301213320 is 233121031.

It is a super-2 number, since 2×1301213320² = 3386312208290844800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1301213294 and 1301213303.

It is not an unprimeable number, because it can be changed into a prime (1301213323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544849 + ... + 547231.

It is an arithmetic number, because the mean of its divisors is an integer number (26793180).

Almost surely, 2^1301213320 is an apocalyptic number.

1301213320 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 1301213320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714763520).

1301213320 is an abundant number, since it is smaller than the sum of its proper divisors (2128313720).

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

1301213320 is a wasteful number, since it uses less digits than its factorization.

1301213320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495 (or 2491 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1301213320 is about 36072.3345515646. The cubic root of 1301213320 is about 1091.7323182034.

Adding to 1301213320 its reverse (233121031), we get a palindrome (1534334351).

The spelling of 1301213320 in words is "one billion, three hundred one million, two hundred thirteen thousand, three hundred twenty".