1052511421243 has 16 divisors (see below), whose sum is σ = 1103542142976. Its totient is φ = 1001929309920.

The previous prime is 1052511421237. The next prime is 1052511421267. The reversal of 1052511421243 is 3421241152501.

It is a cyclic number.

It is not a de Polignac number, because 1052511421243 - 2³³ = 1043921486651 is a prime.

It is a super-2 number, since 2×1052511421243² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1052511427243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4791838 + ... + 5006668.

It is an arithmetic number, because the mean of its divisors is an integer number (68971383936).

Almost surely, 2^{1052511421243} is an apocalyptic number.

1052511421243 is a deficient number, since it is larger than the sum of its proper divisors (51030721733).

1052511421243 is a wasteful number, since it uses less digits than its factorization.

1052511421243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215874.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 1052511421243 its reverse (3421241152501), we get a palindrome (4473752573744).

The spelling of 1052511421243 in words is "one trillion, fifty-two billion, five hundred eleven million, four hundred twenty-one thousand, two hundred forty-three".