1331233302 has 64 divisors (see below), whose sum is σ = 3136573440. Its totient is φ = 368764704.

The previous prime is 1331233291. The next prime is 1331233303. The reversal of 1331233302 is 2033321331.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331233303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248383 + ... + 253685.

It is an arithmetic number, because the mean of its divisors is an integer number (49008960).

Almost surely, 2^1331233302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331233302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568286720).

1331233302 is an abundant number, since it is smaller than the sum of its proper divisors (1805340138).

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

1331233302 is a wasteful number, since it uses less digits than its factorization.

1331233302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5497.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1331233302 is about 36486.0699719770. The cubic root of 1331233302 is about 1100.0642667686.

Adding to 1331233302 its reverse (2033321331), we get a palindrome (3364554633).

The spelling of 1331233302 in words is "one billion, three hundred thirty-one million, two hundred thirty-three thousand, three hundred two".