1042513355520 has 1728 divisors, whose sum is σ = 4692587074560. Its totient is φ = 214481240064.

The previous prime is 1042513355501. The next prime is 1042513355539. The reversal of 1042513355520 is 255533152401.

1042513355520 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 51 + 33 + 55 + 520 = 666.

It is an interprime number because it is at equal distance from previous prime (1042513355501) and next prime (1042513355539).

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1758032344 + ... + 1758032936.

It is an arithmetic number, because the mean of its divisors is an integer number (2715617520).

Almost surely, 2^{1042513355520} is an apocalyptic number.

1042513355520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042513355520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2346293537280).

1042513355520 is an abundant number, since it is smaller than the sum of its proper divisors (3650073719040).

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

1042513355520 is a wasteful number, since it uses less digits than its factorization.

1042513355520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 1042513355520 in words is "one trillion, forty-two billion, five hundred thirteen million, three hundred fifty-five thousand, five hundred twenty".