1342450403621 has 2 divisors, whose sum is σ = 1342450403622. Its totient is φ = 1342450403620.

The previous prime is 1342450403603. The next prime is 1342450403683. The reversal of 1342450403621 is 1263040542431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 751567624900 + 590882778721 = 866930^2 + 768689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342450403621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342450493621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671225201810 + 671225201811.

It is an arithmetic number, because the mean of its divisors is an integer number (671225201811).

Almost surely, 2^{1342450403621} is an apocalyptic number.

It is an amenable number.

1342450403621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342450403621 is an equidigital number, since it uses as much as digits as its factorization.

1342450403621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 1342450403621 in words is "one trillion, three hundred forty-two billion, four hundred fifty million, four hundred three thousand, six hundred twenty-one".