253711952121 has 8 divisors (see below), whose sum is σ = 338777894880. Its totient is φ = 168893655392.

The previous prime is 253711952111. The next prime is 253711952159. The reversal of 253711952121 is 121259117352.

253711952121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 253711952121 - 2¹⁹ = 253711427833 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 253711952121.

It is not an unprimeable number, because it can be changed into a prime (253711952101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61909116 + ... + 61913213.

It is an arithmetic number, because the mean of its divisors is an integer number (42347236860).

Almost surely, 2^253711952121 is an apocalyptic number.

It is an amenable number.

253711952121 is a deficient number, since it is larger than the sum of its proper divisors (85065942759).

253711952121 is a wasteful number, since it uses less digits than its factorization.

253711952121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123823015.

The product of its digits is 37800, while the sum is 39.

The spelling of 253711952121 in words is "two hundred fifty-three billion, seven hundred eleven million, nine hundred fifty-two thousand, one hundred twenty-one".