253042111 has 4 divisors (see below), whose sum is σ = 289190992. Its totient is φ = 216893232.

The previous prime is 253042099. The next prime is 253042123. The reversal of 253042111 is 111240352.

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

It is an interprime number because it is at equal distance from previous prime (253042099) and next prime (253042123).

It is a cyclic number.

It is not a de Polignac number, because 253042111 - 2⁵ = 253042079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253042211) 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, 18074430 + ... + 18074443.

It is an arithmetic number, because the mean of its divisors is an integer number (72297748).

Almost surely, 2^253042111 is an apocalyptic number.

253042111 is a deficient number, since it is larger than the sum of its proper divisors (36148881).

253042111 is an equidigital number, since it uses as much as digits as its factorization.

253042111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36148880.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 253042111 is about 15907.2974134515. The cubic root of 253042111 is about 632.5054432502.

Adding to 253042111 its reverse (111240352), we get a palindrome (364282463).

The spelling of 253042111 in words is "two hundred fifty-three million, forty-two thousand, one hundred eleven".