121431222253 has 32 divisors (see below), whose sum is σ = 134384256000. Its totient is φ = 108813196800.

The previous prime is 121431222247. The next prime is 121431222281. The reversal of 121431222253 is 352222134121.

It is a happy number.

It is not a de Polignac number, because 121431222253 - 2¹⁷ = 121431091181 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 (121431223253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130711293 + ... + 130712221.

It is an arithmetic number, because the mean of its divisors is an integer number (4199508000).

Almost surely, 2^121431222253 is an apocalyptic number.

It is an amenable number.

121431222253 is a deficient number, since it is larger than the sum of its proper divisors (12953033747).

121431222253 is a wasteful number, since it uses less digits than its factorization.

121431222253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633.

The product of its digits is 5760, while the sum is 28.

Adding to 121431222253 its reverse (352222134121), we get a palindrome (473653356374).

The spelling of 121431222253 in words is "one hundred twenty-one billion, four hundred thirty-one million, two hundred twenty-two thousand, two hundred fifty-three".