253111244121 has 64 divisors (see below), whose sum is σ = 408067891200. Its totient is φ = 154462733568.

The previous prime is 253111244119. The next prime is 253111244131. The reversal of 253111244121 is 121442111352.

253111244121 is a `hidden beast` number, since 2 + 531 + 1 + 1 + 2 + 4 + 4 + 121 = 666.

It is not a de Polignac number, because 253111244121 - 2¹ = 253111244119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (253111244101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2377396 + ... + 2481578.

It is an arithmetic number, because the mean of its divisors is an integer number (6376060800).

Almost surely, 2^253111244121 is an apocalyptic number.

It is an amenable number.

253111244121 is a deficient number, since it is larger than the sum of its proper divisors (154956647079).

253111244121 is a wasteful number, since it uses less digits than its factorization.

253111244121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104355 (or 104349 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

Adding to 253111244121 its reverse (121442111352), we get a palindrome (374553355473).

The spelling of 253111244121 in words is "two hundred fifty-three billion, one hundred eleven million, two hundred forty-four thousand, one hundred twenty-one".