1321232312010 has 64 divisors (see below), whose sum is σ = 3415887820800. Its totient is φ = 325130181120.

The previous prime is 1321232312009. The next prime is 1321232312017. The reversal of 1321232312010 is 102132321231.

It is not an unprimeable number, because it can be changed into a prime (1321232312017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822966 + ... + 1822014.

It is an arithmetic number, because the mean of its divisors is an integer number (53373247200).

Almost surely, 2^{1321232312010} is an apocalyptic number.

1321232312010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321232312010 is an abundant number, since it is smaller than the sum of its proper divisors (2094655508790).

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

1321232312010 is a wasteful number, since it uses less digits than its factorization.

1321232312010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002463.

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

Adding to 1321232312010 its reverse (102132321231), we get a palindrome (1423364633241).

The spelling of 1321232312010 in words is "one trillion, three hundred twenty-one billion, two hundred thirty-two million, three hundred twelve thousand, ten".