1021323132120 has 64 divisors (see below), whose sum is σ = 3076683049440. Its totient is φ = 271222732800.

The previous prime is 1021323132113. The next prime is 1021323132139. The reversal of 1021323132120 is 212313231201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17628811 + ... + 17686650.

Almost surely, 2^{1021323132120} is an apocalyptic number.

1021323132120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021323132120 is an abundant number, since it is smaller than the sum of its proper divisors (2055359917320).

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

1021323132120 is a wasteful number, since it uses less digits than its factorization.

1021323132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35315716 (or 35315712 counting only the distinct ones).

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

Adding to 1021323132120 its reverse (212313231201), we get a palindrome (1233636363321).

The spelling of 1021323132120 in words is "one trillion, twenty-one billion, three hundred twenty-three million, one hundred thirty-two thousand, one hundred twenty".