105420040357 has 2 divisors, whose sum is σ = 105420040358. Its totient is φ = 105420040356.

The previous prime is 105420040339. The next prime is 105420040381. The reversal of 105420040357 is 753040024501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87615408001 + 17804632356 = 295999^2 + 133434^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105420040357 is a prime.

It is a super-2 number, since 2×105420040357² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105420040757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52710020178 + 52710020179.

It is an arithmetic number, because the mean of its divisors is an integer number (52710020179).

Almost surely, 2^105420040357 is an apocalyptic number.

It is an amenable number.

105420040357 is a deficient number, since it is larger than the sum of its proper divisors (1).

105420040357 is an equidigital number, since it uses as much as digits as its factorization.

105420040357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 105420040357 its reverse (753040024501), we get a palindrome (858460064858).

The spelling of 105420040357 in words is "one hundred five billion, four hundred twenty million, forty thousand, three hundred fifty-seven".