1252402243132 has 12 divisors (see below), whose sum is σ = 2192856860376. Its totient is φ = 625871711600.

The previous prime is 1252402243091. The next prime is 1252402243133. The reversal of 1252402243132 is 2313422042521.

It is a happy number.

It is a super-2 number, since 2×1252402243132² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1252402243094 and 1252402243103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252402243133) 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, 82343938 + ... + 82359145.

It is an arithmetic number, because the mean of its divisors is an integer number (182738071698).

Almost surely, 2^{1252402243132} is an apocalyptic number.

It is an amenable number.

1252402243132 is a deficient number, since it is larger than the sum of its proper divisors (940454617244).

1252402243132 is a wasteful number, since it uses less digits than its factorization.

1252402243132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164704988 (or 164704986 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 1252402243132 its reverse (2313422042521), we get a palindrome (3565824285653).

The spelling of 1252402243132 in words is "one trillion, two hundred fifty-two billion, four hundred two million, two hundred forty-three thousand, one hundred thirty-two".