253123221303 has 12 divisors (see below), whose sum is σ = 370772043408. Its totient is φ = 166372069920.

The previous prime is 253123221287. The next prime is 253123221359. The reversal of 253123221303 is 303122321352.

It is a happy number.

253123221303 is a `hidden beast` number, since 2 + 5 + 31 + 2 + 322 + 1 + 303 = 666.

It is not a de Polignac number, because 253123221303 - 2⁴ = 253123221287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253123221803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198061350 + ... + 198062627.

It is an arithmetic number, because the mean of its divisors is an integer number (30897670284).

Almost surely, 2^253123221303 is an apocalyptic number.

253123221303 is a deficient number, since it is larger than the sum of its proper divisors (117648822105).

253123221303 is a wasteful number, since it uses less digits than its factorization.

253123221303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396124054 (or 396124051 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 253123221303 its reverse (303122321352), we get a palindrome (556245542655).

The spelling of 253123221303 in words is "two hundred fifty-three billion, one hundred twenty-three million, two hundred twenty-one thousand, three hundred three".