20525302343 has 16 divisors (see below), whose sum is σ = 25431470400. Its totient is φ = 16130797056.

The previous prime is 20525302339. The next prime is 20525302361. The reversal of 20525302343 is 34320352502.

It is a cyclic number.

It is not a de Polignac number, because 20525302343 - 2² = 20525302339 is a prime.

It is a super-2 number, since 2×20525302343² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525302313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743330 + ... + 770447.

It is an arithmetic number, because the mean of its divisors is an integer number (1589466900).

Almost surely, 2^20525302343 is an apocalyptic number.

20525302343 is a deficient number, since it is larger than the sum of its proper divisors (4906168057).

20525302343 is a wasteful number, since it uses less digits than its factorization.

20525302343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513946.

The product of its (nonzero) digits is 21600, while the sum is 29.

Adding to 20525302343 its reverse (34320352502), we get a palindrome (54845654845).

The spelling of 20525302343 in words is "twenty billion, five hundred twenty-five million, three hundred two thousand, three hundred forty-three".