121303254253 has 16 divisors (see below), whose sum is σ = 123174729216. Its totient is φ = 119442288960.

The previous prime is 121303254251. The next prime is 121303254287. The reversal of 121303254253 is 352452303121.

It is a cyclic number.

It is not a de Polignac number, because 121303254253 - 2¹ = 121303254251 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 (121303254251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38300676 + ... + 38303842.

It is an arithmetic number, because the mean of its divisors is an integer number (7698420576).

Almost surely, 2^121303254253 is an apocalyptic number.

It is an amenable number.

121303254253 is a deficient number, since it is larger than the sum of its proper divisors (1871474963).

121303254253 is an equidigital number, since it uses as much as digits as its factorization.

121303254253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 121303254253 its reverse (352452303121), we get a palindrome (473755557374).

The spelling of 121303254253 in words is "one hundred twenty-one billion, three hundred three million, two hundred fifty-four thousand, two hundred fifty-three".