253489202121 has 8 divisors (see below), whose sum is σ = 338036986944. Its totient is φ = 168967109360.

The previous prime is 253489202093. The next prime is 253489202149. The reversal of 253489202121 is 121202984352.

It is an interprime number because it is at equal distance from previous prime (253489202093) and next prime (253489202149).

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 253489202121 - 2³⁵ = 219129463753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253489202121.

It is not an unprimeable number, because it can be changed into a prime (253489202821) 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, 6399981 + ... + 6439466.

It is an arithmetic number, because the mean of its divisors is an integer number (42254623368).

Almost surely, 2^253489202121 is an apocalyptic number.

It is an amenable number.

253489202121 is a deficient number, since it is larger than the sum of its proper divisors (84547784823).

253489202121 is a wasteful number, since it uses less digits than its factorization.

253489202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12846031.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 253489202121 in words is "two hundred fifty-three billion, four hundred eighty-nine million, two hundred two thousand, one hundred twenty-one".