1353850342921 has 2 divisors, whose sum is σ = 1353850342922. Its totient is φ = 1353850342920.

The previous prime is 1353850342861. The next prime is 1353850342931. The reversal of 1353850342921 is 1292430583531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1211736422521 + 142113920400 = 1100789^2 + 376980^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353850342921 - 2⁹ = 1353850342409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1353850342931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676925171460 + 676925171461.

It is an arithmetic number, because the mean of its divisors is an integer number (676925171461).

Almost surely, 2^{1353850342921} is an apocalyptic number.

It is an amenable number.

1353850342921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353850342921 is an equidigital number, since it uses as much as digits as its factorization.

1353850342921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 1353850342921 in words is "one trillion, three hundred fifty-three billion, eight hundred fifty million, three hundred forty-two thousand, nine hundred twenty-one".