1312123131002 has 8 divisors (see below), whose sum is σ = 2071773364800. Its totient is φ = 621532009404.

The previous prime is 1312123130993. The next prime is 1312123131073. The reversal of 1312123131002 is 2001313212131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1312123131002³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17264778002 + ... + 17264778077.

It is an arithmetic number, because the mean of its divisors is an integer number (258971670600).

Almost surely, 2^{1312123131002} is an apocalyptic number.

1312123131002 is a deficient number, since it is larger than the sum of its proper divisors (759650233798).

1312123131002 is a wasteful number, since it uses less digits than its factorization.

1312123131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34529556100.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1312123131002 its reverse (2001313212131), we get a palindrome (3313436343133).

The spelling of 1312123131002 in words is "one trillion, three hundred twelve billion, one hundred twenty-three million, one hundred thirty-one thousand, two".