1311485123252 has 12 divisors (see below), whose sum is σ = 2295114682560. Its totient is φ = 655738071096.

The previous prime is 1311485123251. The next prime is 1311485123287. The reversal of 1311485123252 is 2523215841131.

It is a super-2 number, since 2×1311485123252² (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 (1311485123251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416102 + ... + 1672157.

It is an arithmetic number, because the mean of its divisors is an integer number (191259556880).

Almost surely, 2^{1311485123252} is an apocalyptic number.

It is an amenable number.

1311485123252 is a deficient number, since it is larger than the sum of its proper divisors (983629559308).

1311485123252 is a wasteful number, since it uses less digits than its factorization.

1311485123252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245270 (or 2245268 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The spelling of 1311485123252 in words is "one trillion, three hundred eleven billion, four hundred eighty-five million, one hundred twenty-three thousand, two hundred fifty-two".