122403215125253 has 4 divisors (see below), whose sum is σ = 122422189432608. Its totient is φ = 122384240817900.

The previous prime is 122403215125199. The next prime is 122403215125277. The reversal of 122403215125253 is 352521512304221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122403215125253 - 2⁶ = 122403215125189 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 (122403215125553) 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, 9487144001 + ... + 9487156902.

It is an arithmetic number, because the mean of its divisors is an integer number (30605547358152).

Almost surely, 2^{122403215125253} is an apocalyptic number.

It is an amenable number.

122403215125253 is a deficient number, since it is larger than the sum of its proper divisors (18974307355).

122403215125253 is an equidigital number, since it uses as much as digits as its factorization.

122403215125253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18974307354.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 122403215125253 its reverse (352521512304221), we get a palindrome (474924727429474).

The spelling of 122403215125253 in words is "one hundred twenty-two trillion, four hundred three billion, two hundred fifteen million, one hundred twenty-five thousand, two hundred fifty-three".