1023413489520 has 80 divisors (see below), whose sum is σ = 3224591401632. Its totient is φ = 268436321280.

The previous prime is 1023413489477. The next prime is 1023413489531. The reversal of 1023413489520 is 259843143201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34938007 + ... + 34967286.

Almost surely, 2^{1023413489520} is an apocalyptic number.

1023413489520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023413489520 is an abundant number, since it is smaller than the sum of its proper divisors (2201177912112).

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

1023413489520 is a wasteful number, since it uses less digits than its factorization.

1023413489520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69905370 (or 69905364 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 1023413489520 in words is "one trillion, twenty-three billion, four hundred thirteen million, four hundred eighty-nine thousand, five hundred twenty".