1353215254121 has 2 divisors, whose sum is σ = 1353215254122. Its totient is φ = 1353215254120.

The previous prime is 1353215254109. The next prime is 1353215254123. The reversal of 1353215254121 is 1214525123531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772929338896 + 580285915225 = 879164^2 + 761765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353215254121 - 2³⁰ = 1352141512297 is a prime.

Together with 1353215254123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1353215254123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676607627060 + 676607627061.

It is an arithmetic number, because the mean of its divisors is an integer number (676607627061).

Almost surely, 2^{1353215254121} is an apocalyptic number.

It is an amenable number.

1353215254121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353215254121 is an equidigital number, since it uses as much as digits as its factorization.

1353215254121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

The spelling of 1353215254121 in words is "one trillion, three hundred fifty-three billion, two hundred fifteen million, two hundred fifty-four thousand, one hundred twenty-one".