1312100010 has 48 divisors (see below), whose sum is σ = 3673883304. Its totient is φ = 322978176.

The previous prime is 1312100003. The next prime is 1312100047. The reversal of 1312100010 is 100012131.

It can be written as a sum of positive squares in 4 ways, for example, as 803552409 + 508547601 = 28347^2 + 22551^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1312099965 and 1312100001.

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, 559557 + ... + 561896.

Almost surely, 2^1312100010 is an apocalyptic number.

1312100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312100010 is an abundant number, since it is smaller than the sum of its proper divisors (2361783294).

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

1312100010 is a wasteful number, since it uses less digits than its factorization.

1312100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121479 (or 1121476 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1312100010 is about 36222.9210583575. The cubic root of 1312100010 is about 1094.7685505692.

Adding to 1312100010 its reverse (100012131), we get a palindrome (1412112141).

The spelling of 1312100010 in words is "one billion, three hundred twelve million, one hundred thousand, ten".