1301113440 has 144 divisors (see below), whose sum is σ = 4843749456. Its totient is φ = 315417600.

The previous prime is 1301113439. The next prime is 1301113453. The reversal of 1301113440 is 443111031.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25231 + ... + 56910.

It is an arithmetic number, because the mean of its divisors is an integer number (33637149).

Almost surely, 2^1301113440 is an apocalyptic number.

1301113440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301113440 is an abundant number, since it is smaller than the sum of its proper divisors (3542636016).

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

1301113440 is a wasteful number, since it uses less digits than its factorization.

1301113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82173 (or 82162 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1301113440 is about 36070.9500845209. The cubic root of 1301113440 is about 1091.7043840150.

Adding to 1301113440 its reverse (443111031), we get a palindrome (1744224471).

The spelling of 1301113440 in words is "one billion, three hundred one million, one hundred thirteen thousand, four hundred forty".