1331252120052 has 48 divisors (see below), whose sum is σ = 3452008022400. Its totient is φ = 443671810560.

The previous prime is 1331252120041. The next prime is 1331252120089. The reversal of 1331252120052 is 2500212521331.

1331252120052 is a `hidden beast` number, since 133 + 1 + 2 + 521 + 2 + 0 + 0 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1331252119998 and 1331252120025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483949 + ... + 1701972.

It is an arithmetic number, because the mean of its divisors is an integer number (71916833800).

Almost surely, 2^{1331252120052} is an apocalyptic number.

1331252120052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331252120052 is an abundant number, since it is smaller than the sum of its proper divisors (2120755902348).

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

1331252120052 is a wasteful number, since it uses less digits than its factorization.

1331252120052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191573 (or 2191565 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 1331252120052 its reverse (2500212521331), we get a palindrome (3831464641383).

The spelling of 1331252120052 in words is "one trillion, three hundred thirty-one billion, two hundred fifty-two million, one hundred twenty thousand, fifty-two".