1023721652352 has 64 divisors (see below), whose sum is σ = 3107726452800. Its totient is φ = 292491899904.

The previous prime is 1023721652339. The next prime is 1023721652353. The reversal of 1023721652352 is 2532561273201.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1023721652352.

It is not an unprimeable number, because it can be changed into a prime (1023721652353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190421727 + ... + 190427102.

It is an arithmetic number, because the mean of its divisors is an integer number (48558225825).

Almost surely, 2^{1023721652352} is an apocalyptic number.

1023721652352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023721652352 is an abundant number, since it is smaller than the sum of its proper divisors (2084004800448).

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

1023721652352 is an equidigital number, since it uses as much as digits as its factorization.

1023721652352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380848853 (or 380848841 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 1023721652352 in words is "one trillion, twenty-three billion, seven hundred twenty-one million, six hundred fifty-two thousand, three hundred fifty-two".