1310001213212 has 48 divisors (see below), whose sum is σ = 2451843717120. Its totient is φ = 611066904000.

The previous prime is 1310001213211. The next prime is 1310001213277. The reversal of 1310001213212 is 2123121000131.

It is a super-2 number, since 2×1310001213212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310001213211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2045087 + ... + 2608137.

It is an arithmetic number, because the mean of its divisors is an integer number (51080077440).

Almost surely, 2^{1310001213212} is an apocalyptic number.

It is an amenable number.

1310001213212 is a deficient number, since it is larger than the sum of its proper divisors (1141842503908).

1310001213212 is a wasteful number, since it uses less digits than its factorization.

1310001213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563762 (or 563760 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1310001213212 its reverse (2123121000131), we get a palindrome (3433122213343).

The spelling of 1310001213212 in words is "one trillion, three hundred ten billion, one million, two hundred thirteen thousand, two hundred twelve".