1002152121532 has 48 divisors (see below), whose sum is σ = 1921170636000. Its totient is φ = 455289196544.

The previous prime is 1002152121431. The next prime is 1002152121571. The reversal of 1002152121532 is 2351212512001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1002152121497 and 1002152121506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22811844 + ... + 22855732.

It is an arithmetic number, because the mean of its divisors is an integer number (40024388250).

Almost surely, 2^{1002152121532} is an apocalyptic number.

It is an amenable number.

1002152121532 is a deficient number, since it is larger than the sum of its proper divisors (919018514468).

1002152121532 is a wasteful number, since it uses less digits than its factorization.

1002152121532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55518 (or 55516 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 1002152121532 its reverse (2351212512001), we get a palindrome (3353364633533).

The spelling of 1002152121532 in words is "one trillion, two billion, one hundred fifty-two million, one hundred twenty-one thousand, five hundred thirty-two".