1302132012321 has 16 divisors (see below), whose sum is σ = 1986203414528. Its totient is φ = 743324590800.

The previous prime is 1302132012301. The next prime is 1302132012329. The reversal of 1302132012321 is 1232102312031.

It is not a de Polignac number, because 1302132012321 - 2⁷ = 1302132012193 is a prime.

It is a super-2 number, since 2×1302132012321² (a number of 25 digits) contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1302132012329) 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, 31263895 + ... + 31305516.

It is an arithmetic number, because the mean of its divisors is an integer number (124137713408).

Almost surely, 2^{1302132012321} is an apocalyptic number.

It is an amenable number.

1302132012321 is a deficient number, since it is larger than the sum of its proper divisors (684071402207).

1302132012321 is an equidigital number, since it uses as much as digits as its factorization.

1302132012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62570412.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1302132012321 its reverse (1232102312031), we get a palindrome (2534234324352).

The spelling of 1302132012321 in words is "one trillion, three hundred two billion, one hundred thirty-two million, twelve thousand, three hundred twenty-one".