20343415351 has 4 divisors (see below), whose sum is σ = 23249617552. Its totient is φ = 17437213152.

The previous prime is 20343415333. The next prime is 20343415397. The reversal of 20343415351 is 15351434302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20343415351 - 2⁵ = 20343415319 is a prime.

It is a super-3 number, since 3×20343415351³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343415331) 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, 1453101090 + ... + 1453101103.

It is an arithmetic number, because the mean of its divisors is an integer number (5812404388).

Almost surely, 2^20343415351 is an apocalyptic number.

20343415351 is a deficient number, since it is larger than the sum of its proper divisors (2906202201).

20343415351 is an equidigital number, since it uses as much as digits as its factorization.

20343415351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906202200.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 20343415351 its reverse (15351434302), we get a palindrome (35694849653).

The spelling of 20343415351 in words is "twenty billion, three hundred forty-three million, four hundred fifteen thousand, three hundred fifty-one".