1052521111 has 8 divisors (see below), whose sum is σ = 1068249600. Its totient is φ = 1036817880.

The previous prime is 1052521109. The next prime is 1052521121. The reversal of 1052521111 is 1111252501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1052521111 - 2¹ = 1052521109 is a prime.

It is a super-2 number, since 2×1052521111² = 2215601378201348642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052521121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88030 + ... + 99268.

It is an arithmetic number, because the mean of its divisors is an integer number (133531200).

Almost surely, 2^1052521111 is an apocalyptic number.

1052521111 is a deficient number, since it is larger than the sum of its proper divisors (15728489).

1052521111 is a wasteful number, since it uses less digits than its factorization.

1052521111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12629.

The product of its (nonzero) digits is 100, while the sum is 19.

The square root of 1052521111 is about 32442.5817560810. The cubic root of 1052521111 is about 1017.2091821814.

Adding to 1052521111 its reverse (1111252501), we get a palindrome (2163773612).

The spelling of 1052521111 in words is "one billion, fifty-two million, five hundred twenty-one thousand, one hundred eleven".