1052530243212 has 96 divisors (see below), whose sum is σ = 2839688409600. Its totient is φ = 297196872192.

The previous prime is 1052530243207. The next prime is 1052530243213. The reversal of 1052530243212 is 2123420352501.

It is a super-2 number, since 2×1052530243212² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1052530243212.

It is not an unprimeable number, because it can be changed into a prime (1052530243213) 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, 15538714 + ... + 15606302.

It is an arithmetic number, because the mean of its divisors is an integer number (29580087600).

Almost surely, 2^{1052530243212} is an apocalyptic number.

1052530243212 is a gapful number since it is divisible by the number (12) 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 1052530243212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1419844204800).

1052530243212 is an abundant number, since it is smaller than the sum of its proper divisors (1787158166388).

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

1052530243212 is a wasteful number, since it uses less digits than its factorization.

1052530243212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69775 (or 69773 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1052530243212 its reverse (2123420352501), we get a palindrome (3175950595713).

The spelling of 1052530243212 in words is "one trillion, fifty-two billion, five hundred thirty million, two hundred forty-three thousand, two hundred twelve".