1052542121520 has 40 divisors (see below), whose sum is σ = 3262880577456. Its totient is φ = 280677899008.

The previous prime is 1052542121467. The next prime is 1052542121549. The reversal of 1052542121520 is 251212452501.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1052542121520² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2192795847 + ... + 2192796326.

Almost surely, 2^{1052542121520} is an apocalyptic number.

1052542121520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052542121520 is an abundant number, since it is smaller than the sum of its proper divisors (2210338455936).

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

1052542121520 is a wasteful number, since it uses less digits than its factorization.

1052542121520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385592189 (or 4385592183 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 1052542121520 in words is "one trillion, fifty-two billion, five hundred forty-two million, one hundred twenty-one thousand, five hundred twenty".