121413400253 has 2 divisors, whose sum is σ = 121413400254. Its totient is φ = 121413400252.

The previous prime is 121413400243. The next prime is 121413400351. The reversal of 121413400253 is 352004314121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117482361049 + 3931039204 = 342757^2 + 62698^2 .

It is a cyclic number.

It is not a de Polignac number, because 121413400253 - 2²⁴ = 121396623037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121413400243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60706700126 + 60706700127.

It is an arithmetic number, because the mean of its divisors is an integer number (60706700127).

Almost surely, 2^121413400253 is an apocalyptic number.

It is an amenable number.

121413400253 is a deficient number, since it is larger than the sum of its proper divisors (1).

121413400253 is an equidigital number, since it uses as much as digits as its factorization.

121413400253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 121413400253 its reverse (352004314121), we get a palindrome (473417714374).

The spelling of 121413400253 in words is "one hundred twenty-one billion, four hundred thirteen million, four hundred thousand, two hundred fifty-three".