1023644252001 has 32 divisors (see below), whose sum is σ = 1578999121920. Its totient is φ = 577768093056.

The previous prime is 1023644251963. The next prime is 1023644252009. The reversal of 1023644252001 is 1002524463201.

It is not a de Polignac number, because 1023644252001 - 2⁷ = 1023644251873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023644252001.

It is not an unprimeable number, because it can be changed into a prime (1023644252009) 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, 1524130 + ... + 2090516.

It is an arithmetic number, because the mean of its divisors is an integer number (49343722560).

Almost surely, 2^{1023644252001} is an apocalyptic number.

It is an amenable number.

1023644252001 is a deficient number, since it is larger than the sum of its proper divisors (555354869919).

1023644252001 is an equidigital number, since it uses as much as digits as its factorization.

1023644252001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567453.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 1023644252001 in words is "one trillion, twenty-three billion, six hundred forty-four million, two hundred fifty-two thousand, one".