1252000111 has 8 divisors (see below), whose sum is σ = 1271142864. Its totient is φ = 1232999040.

The previous prime is 1252000091. The next prime is 1252000121. The reversal of 1252000111 is 1110002521.

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 1252000111 - 2¹⁷ = 1251869039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252000091 and 1252000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252000121) 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, 17545 + ... + 53026.

It is an arithmetic number, because the mean of its divisors is an integer number (158892858).

Almost surely, 2^1252000111 is an apocalyptic number.

1252000111 is a deficient number, since it is larger than the sum of its proper divisors (19142753).

1252000111 is a wasteful number, since it uses less digits than its factorization.

1252000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70841.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1252000111 is about 35383.6135944310. The cubic root of 1252000111 is about 1077.7915866485.

Adding to 1252000111 its reverse (1110002521), we get a palindrome (2362002632).

The spelling of 1252000111 in words is "one billion, two hundred fifty-two million, one hundred eleven", and thus it is an aban number.