1312121410 has 16 divisors (see below), whose sum is σ = 2362248000. Its totient is φ = 524753136.

The previous prime is 1312121389. The next prime is 1312121413. The reversal of 1312121410 is 141212131.

It is not an unprimeable number, because it can be changed into a prime (1312121413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78361 + ... + 93619.

It is an arithmetic number, because the mean of its divisors is an integer number (147640500).

Almost surely, 2^1312121410 is an apocalyptic number.

1312121410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312121410 is a deficient number, since it is larger than the sum of its proper divisors (1050126590).

1312121410 is a wasteful number, since it uses less digits than its factorization.

1312121410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23865.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1312121410 is about 36223.2164502271. The cubic root of 1312121410 is about 1094.7745023309.

Adding to 1312121410 its reverse (141212131), we get a palindrome (1453333541).

The spelling of 1312121410 in words is "one billion, three hundred twelve million, one hundred twenty-one thousand, four hundred ten".