1321213421032 has 32 divisors (see below), whose sum is σ = 2602331712000. Its totient is φ = 627643829824.

The previous prime is 1321213420981. The next prime is 1321213421053. The reversal of 1321213421032 is 2301243121231.

It is a junction number, because it is equal to n+sod(n) for n = 1321213420988 and 1321213421006.

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 7 ways as a sum of consecutive naturals, for example, 24068248 + ... + 24123079.

It is an arithmetic number, because the mean of its divisors is an integer number (81322866000).

Almost surely, 2^{1321213421032} is an apocalyptic number.

It is an amenable number.

1321213421032 is a deficient number, since it is larger than the sum of its proper divisors (1281118290968).

1321213421032 is a wasteful number, since it uses less digits than its factorization.

1321213421032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48191505 (or 48191501 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1321213421032 its reverse (2301243121231), we get a palindrome (3622456542263).

The spelling of 1321213421032 in words is "one trillion, three hundred twenty-one billion, two hundred thirteen million, four hundred twenty-one thousand, thirty-two".