121001323253 has 2 divisors, whose sum is σ = 121001323254. Its totient is φ = 121001323252.

The previous prime is 121001323211. The next prime is 121001323271. The reversal of 121001323253 is 352323100121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92965839409 + 28035483844 = 304903^2 + 167438^2 .

It is a cyclic number.

It is not a de Polignac number, because 121001323253 - 2⁸ = 121001322997 is a prime.

It is a super-3 number, since 3×121001323253³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121001326253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500661626 + 60500661627.

It is an arithmetic number, because the mean of its divisors is an integer number (60500661627).

Almost surely, 2^121001323253 is an apocalyptic number.

It is an amenable number.

121001323253 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001323253 is an equidigital number, since it uses as much as digits as its factorization.

121001323253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 121001323253 its reverse (352323100121), we get a palindrome (473324423374).

The spelling of 121001323253 in words is "one hundred twenty-one billion, one million, three hundred twenty-three thousand, two hundred fifty-three".