1020444988319 has 8 divisors (see below), whose sum is σ = 1021148824080. Its totient is φ = 1019741284800.

The previous prime is 1020444988309. The next prime is 1020444988327. The reversal of 1020444988319 is 9138894440201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020444988319 - 2⁸ = 1020444988063 is a prime.

It is a super-2 number, since 2×1020444988319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020444988309) 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, 19129817 + ... + 19183085.

It is an arithmetic number, because the mean of its divisors is an integer number (127643603010).

Almost surely, 2^{1020444988319} is an apocalyptic number.

1020444988319 is a deficient number, since it is larger than the sum of its proper divisors (703835761).

1020444988319 is a wasteful number, since it uses less digits than its factorization.

1020444988319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66121.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 1020444988319 in words is "one trillion, twenty billion, four hundred forty-four million, nine hundred eighty-eight thousand, three hundred nineteen".