1310393040020 has 24 divisors (see below), whose sum is σ = 2751862520904. Its totient is φ = 524150142336.

The previous prime is 1310393040007. The next prime is 1310393040029. The reversal of 1310393040020 is 200403930131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 471809629456 + 838583410564 = 686884^2 + 915742^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310393040029) 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, 1231454 + ... + 2034026.

It is an arithmetic number, because the mean of its divisors is an integer number (114660938371).

Almost surely, 2^{1310393040020} is an apocalyptic number.

1310393040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310393040020 is an abundant number, since it is smaller than the sum of its proper divisors (1441469480884).

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

1310393040020 is a wasteful number, since it uses less digits than its factorization.

1310393040020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884219 (or 884217 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 1310393040020 its reverse (200403930131), we get a palindrome (1510796970151).

The spelling of 1310393040020 in words is "one trillion, three hundred ten billion, three hundred ninety-three million, forty thousand, twenty".