1321203144532 has 24 divisors (see below), whose sum is σ = 2380390021856. Its totient is φ = 641280211488.

The previous prime is 1321203144467. The next prime is 1321203144551. The reversal of 1321203144532 is 2354413021231.

It is a junction number, because it is equal to n+sod(n) for n = 1321203144494 and 1321203144503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23534583 + ... + 23590654.

Almost surely, 2^{1321203144532} is an apocalyptic number.

It is an amenable number.

1321203144532 is a deficient number, since it is larger than the sum of its proper divisors (1059186877324).

1321203144532 is a wasteful number, since it uses less digits than its factorization.

1321203144532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47125447 (or 47125445 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1321203144532 its reverse (2354413021231), we get a palindrome (3675616165763).

The spelling of 1321203144532 in words is "one trillion, three hundred twenty-one billion, two hundred three million, one hundred forty-four thousand, five hundred thirty-two".