103420357 has 2 divisors, whose sum is σ = 103420358. Its totient is φ = 103420356.

The previous prime is 103420349. The next prime is 103420379. The reversal of 103420357 is 753024301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101485476 + 1934881 = 10074^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 103420357 - 2³ = 103420349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103420157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51710178 + 51710179.

It is an arithmetic number, because the mean of its divisors is an integer number (51710179).

Almost surely, 2^103420357 is an apocalyptic number.

It is an amenable number.

103420357 is a deficient number, since it is larger than the sum of its proper divisors (1).

103420357 is an equidigital number, since it uses as much as digits as its factorization.

103420357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 103420357 is about 10169.5799814938. The cubic root of 103420357 is about 469.3916332729.

Adding to 103420357 its reverse (753024301), we get a palindrome (856444658).

The spelling of 103420357 in words is "one hundred three million, four hundred twenty thousand, three hundred fifty-seven".