1253241111 has 4 divisors (see below), whose sum is σ = 1670988152. Its totient is φ = 835494072.

The previous prime is 1253241109. The next prime is 1253241169. The reversal of 1253241111 is 1111423521.

1253241111 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1253241111 - 2¹ = 1253241109 is a prime.

It is a super-2 number, since 2×1253241111² = 3141226564601028642, 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 (1253241191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208873516 + ... + 208873521.

It is an arithmetic number, because the mean of its divisors is an integer number (417747038).

Almost surely, 2^1253241111 is an apocalyptic number.

1253241111 is a deficient number, since it is larger than the sum of its proper divisors (417747041).

1253241111 is an equidigital number, since it uses as much as digits as its factorization.

1253241111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417747040.

The product of its digits is 240, while the sum is 21.

The square root of 1253241111 is about 35401.1456170560. The cubic root of 1253241111 is about 1078.1475764128.

Adding to 1253241111 its reverse (1111423521), we get a palindrome (2364664632).

The spelling of 1253241111 in words is "one billion, two hundred fifty-three million, two hundred forty-one thousand, one hundred eleven".