1201313328 has 40 divisors (see below), whose sum is σ = 3105270000. Its totient is φ = 400195584.

The previous prime is 1201313327. The next prime is 1201313329. The reversal of 1201313328 is 8233131021.

It is an interprime number because it is at equal distance from previous prime (1201313327) and next prime (1201313329).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1201313298 and 1201313307.

It is not an unprimeable number, because it can be changed into a prime (1201313327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84048 + ... + 97296.

It is an arithmetic number, because the mean of its divisors is an integer number (77631750).

Almost surely, 2^1201313328 is an apocalyptic number.

It is an amenable number.

1201313328 is an abundant number, since it is smaller than the sum of its proper divisors (1903956672).

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

1201313328 is a wasteful number, since it uses less digits than its factorization.

1201313328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15149 (or 15143 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1201313328 is about 34659.9672244507. The cubic root of 1201313328 is about 1063.0460998554.

Adding to 1201313328 its reverse (8233131021), we get a palindrome (9434444349).

The spelling of 1201313328 in words is "one billion, two hundred one million, three hundred thirteen thousand, three hundred twenty-eight".