1353234414421 has 2 divisors, whose sum is σ = 1353234414422. Its totient is φ = 1353234414420.

The previous prime is 1353234414407. The next prime is 1353234414437. The reversal of 1353234414421 is 1244144323531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1131191780625 + 222042633796 = 1063575^2 + 471214^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353234414421 - 2²³ = 1353226025813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1353234412421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676617207210 + 676617207211.

It is an arithmetic number, because the mean of its divisors is an integer number (676617207211).

Almost surely, 2^{1353234414421} is an apocalyptic number.

It is an amenable number.

1353234414421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353234414421 is an equidigital number, since it uses as much as digits as its factorization.

1353234414421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 37.

Adding to 1353234414421 its reverse (1244144323531), we get a palindrome (2597378737952).

The spelling of 1353234414421 in words is "one trillion, three hundred fifty-three billion, two hundred thirty-four million, four hundred fourteen thousand, four hundred twenty-one".