2103400357 has 2 divisors, whose sum is σ = 2103400358. Its totient is φ = 2103400356.

The previous prime is 2103400307. The next prime is 2103400367. The reversal of 2103400357 is 7530043012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1506526596 + 596873761 = 38814^2 + 24431^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103400357 - 2¹¹ = 2103398309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103400307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051700178 + 1051700179.

It is an arithmetic number, because the mean of its divisors is an integer number (1051700179).

Almost surely, 2^2103400357 is an apocalyptic number.

It is an amenable number.

2103400357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103400357 is an equidigital number, since it uses as much as digits as its factorization.

2103400357 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 2103400357 is about 45862.8428796122. The cubic root of 2103400357 is about 1281.2699710486.

Adding to 2103400357 its reverse (7530043012), we get a palindrome (9633443369).

The spelling of 2103400357 in words is "two billion, one hundred three million, four hundred thousand, three hundred fifty-seven".