350245004323421 has 2 divisors, whose sum is σ = 350245004323422. Its totient is φ = 350245004323420.

The previous prime is 350245004323301. The next prime is 350245004323429. The reversal of 350245004323421 is 124323400542053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275135568758521 + 75109435564900 = 16587211^2 + 8666570^2 .

It is a cyclic number.

It is not a de Polignac number, because 350245004323421 - 2²² = 350245000129117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (350245004323429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175122502161710 + 175122502161711.

It is an arithmetic number, because the mean of its divisors is an integer number (175122502161711).

Almost surely, 2^{350245004323421} is an apocalyptic number.

It is an amenable number.

350245004323421 is a deficient number, since it is larger than the sum of its proper divisors (1).

350245004323421 is an equidigital number, since it uses as much as digits as its factorization.

350245004323421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 350245004323421 its reverse (124323400542053), we get a palindrome (474568404865474).

The spelling of 350245004323421 in words is "three hundred fifty trillion, two hundred forty-five billion, four million, three hundred twenty-three thousand, four hundred twenty-one".