1311012101012 has 12 divisors (see below), whose sum is σ = 2373383976180. Its totient is φ = 632902393536.

The previous prime is 1311012100987. The next prime is 1311012101033. The reversal of 1311012101012 is 2101012101131.

It can be written as a sum of positive squares in 2 ways, for example, as 621770098576 + 689242002436 = 788524^2 + 830206^2 .

It is a congruent number.

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, 5650914113 + ... + 5650914344.

It is an arithmetic number, because the mean of its divisors is an integer number (197781998015).

Almost surely, 2^{1311012101012} is an apocalyptic number.

It is an amenable number.

1311012101012 is a deficient number, since it is larger than the sum of its proper divisors (1062371875168).

1311012101012 is a wasteful number, since it uses less digits than its factorization.

1311012101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11301828490 (or 11301828488 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1311012101012 its reverse (2101012101131), we get a palindrome (3412024202143).

The spelling of 1311012101012 in words is "one trillion, three hundred eleven billion, twelve million, one hundred one thousand, twelve".