20110643351 has 2 divisors, whose sum is σ = 20110643352. Its totient is φ = 20110643350.

The previous prime is 20110643327. The next prime is 20110643393. The reversal of 20110643351 is 15334601102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20110643351 - 2³⁴ = 2930774167 is a prime.

It is a super-2 number, since 2×20110643351² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20110643351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110643321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055321675 + 10055321676.

It is an arithmetic number, because the mean of its divisors is an integer number (10055321676).

Almost surely, 2^20110643351 is an apocalyptic number.

20110643351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110643351 is an equidigital number, since it uses as much as digits as its factorization.

20110643351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 20110643351 in words is "twenty billion, one hundred ten million, six hundred forty-three thousand, three hundred fifty-one".