1310201240 has 64 divisors (see below), whose sum is σ = 3120768000. Its totient is φ = 493672320.

The previous prime is 1310201239. The next prime is 1310201293. The reversal of 1310201240 is 421020131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131225 + ... + 140855.

It is an arithmetic number, because the mean of its divisors is an integer number (48762000).

Almost surely, 2^1310201240 is an apocalyptic number.

1310201240 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 1310201240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1560384000).

1310201240 is an abundant number, since it is smaller than the sum of its proper divisors (1810566760).

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

1310201240 is a wasteful number, since it uses less digits than its factorization.

1310201240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9840 (or 9836 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1310201240 is about 36196.7020597181. The cubic root of 1310201240 is about 1094.2402074069.

Adding to 1310201240 its reverse (421020131), we get a palindrome (1731221371).

The spelling of 1310201240 in words is "one billion, three hundred ten million, two hundred one thousand, two hundred forty".