20035205351 has 4 divisors (see below), whose sum is σ = 22897377552. Its totient is φ = 17173033152.

The previous prime is 20035205341. The next prime is 20035205389. The reversal of 20035205351 is 15350253002.

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 20035205351 - 2⁶ = 20035205287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20035205351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20035205341) 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, 1431086090 + ... + 1431086103.

It is an arithmetic number, because the mean of its divisors is an integer number (5724344388).

Almost surely, 2^20035205351 is an apocalyptic number.

20035205351 is a deficient number, since it is larger than the sum of its proper divisors (2862172201).

20035205351 is an equidigital number, since it uses as much as digits as its factorization.

20035205351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862172200.

The product of its (nonzero) digits is 4500, while the sum is 26.

Adding to 20035205351 its reverse (15350253002), we get a palindrome (35385458353).

The spelling of 20035205351 in words is "twenty billion, thirty-five million, two hundred five thousand, three hundred fifty-one".