1331142321302 has 4 divisors (see below), whose sum is σ = 1996713481956. Its totient is φ = 665571160650.

The previous prime is 1331142321283. The next prime is 1331142321307. The reversal of 1331142321302 is 2031232411331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1331142321302² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331142321307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332785580324 + ... + 332785580327.

It is an arithmetic number, because the mean of its divisors is an integer number (499178370489).

Almost surely, 2^{1331142321302} is an apocalyptic number.

1331142321302 is a deficient number, since it is larger than the sum of its proper divisors (665571160654).

1331142321302 is an equidigital number, since it uses as much as digits as its factorization.

1331142321302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665571160653.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1331142321302 its reverse (2031232411331), we get a palindrome (3362374732633).

The spelling of 1331142321302 in words is "one trillion, three hundred thirty-one billion, one hundred forty-two million, three hundred twenty-one thousand, three hundred two".