350152513421 has 4 divisors (see below), whose sum is σ = 350153781852. Its totient is φ = 350151244992.

The previous prime is 350152513393. The next prime is 350152513517. The reversal of 350152513421 is 124315251053.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 124315251053 = 7 ⋅17759321579.

It can be written as a sum of positive squares in 2 ways, for example, as 28396968196 + 321755545225 = 168514^2 + 567235^2 .

It is a cyclic number.

It is not a de Polignac number, because 350152513421 - 2²² = 350148319117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350152516421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25196 + ... + 837221.

It is an arithmetic number, because the mean of its divisors is an integer number (87538445463).

Almost surely, 2^350152513421 is an apocalyptic number.

It is an amenable number.

350152513421 is a deficient number, since it is larger than the sum of its proper divisors (1268431).

350152513421 is an equidigital number, since it uses as much as digits as its factorization.

350152513421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268430.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 350152513421 its reverse (124315251053), we get a palindrome (474467764474).

The spelling of 350152513421 in words is "three hundred fifty billion, one hundred fifty-two million, five hundred thirteen thousand, four hundred twenty-one".