1312410020 has 24 divisors (see below), whose sum is σ = 2787031800. Its totient is φ = 519064832.

The previous prime is 1312409981. The next prime is 1312410023. The reversal of 1312410020 is 200142131.

It can be written as a sum of positive squares in 4 ways, for example, as 46758244 + 1265651776 = 6838^2 + 35576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312409977 and 1312410004.

It is not an unprimeable number, because it can be changed into a prime (1312410023) 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, 366875 + ... + 370434.

It is an arithmetic number, because the mean of its divisors is an integer number (116126325).

Almost surely, 2^1312410020 is an apocalyptic number.

1312410020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312410020 is an abundant number, since it is smaller than the sum of its proper divisors (1474621780).

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

1312410020 is a wasteful number, since it uses less digits than its factorization.

1312410020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737407 (or 737405 counting only the distinct ones).

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

The square root of 1312410020 is about 36227.2000022083. The cubic root of 1312410020 is about 1094.8547641378.

Adding to 1312410020 its reverse (200142131), we get a palindrome (1512552151).

The spelling of 1312410020 in words is "one billion, three hundred twelve million, four hundred ten thousand, twenty".