1321363032 has 64 divisors (see below), whose sum is σ = 3606940800. Its totient is φ = 400055040.

The previous prime is 1321363027. The next prime is 1321363033. The reversal of 1321363032 is 2303631231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1321362993 and 1321363011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321363033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574108 + ... + 576404.

It is an arithmetic number, because the mean of its divisors is an integer number (56358450).

Almost surely, 2^1321363032 is an apocalyptic number.

1321363032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321363032 is an abundant number, since it is smaller than the sum of its proper divisors (2285577768).

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

1321363032 is a wasteful number, since it uses less digits than its factorization.

1321363032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496 (or 4492 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 1321363032 is about 36350.5575197960. The cubic root of 1321363032 is about 1097.3387546831.

Adding to 1321363032 its reverse (2303631231), we get a palindrome (3624994263).

It can be divided in two parts, 13213 and 63032, that added together give a triangular number (76245 = T₃₉₀).

The spelling of 1321363032 in words is "one billion, three hundred twenty-one million, three hundred sixty-three thousand, thirty-two".