103251243643 has 2 divisors, whose sum is σ = 103251243644. Its totient is φ = 103251243642.

The previous prime is 103251243631. The next prime is 103251243653. The reversal of 103251243643 is 346342152301.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (346342152301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103251243643 - 2⁵ = 103251243611 is a prime.

It is a super-2 number, since 2×103251243643² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103251243599 and 103251243608.

It is not a weakly prime, because it can be changed into another prime (103251243653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51625621821 + 51625621822.

It is an arithmetic number, because the mean of its divisors is an integer number (51625621822).

Almost surely, 2^103251243643 is an apocalyptic number.

103251243643 is a deficient number, since it is larger than the sum of its proper divisors (1).

103251243643 is an equidigital number, since it uses as much as digits as its factorization.

103251243643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 103251243643 its reverse (346342152301), we get a palindrome (449593395944).

The spelling of 103251243643 in words is "one hundred three billion, two hundred fifty-one million, two hundred forty-three thousand, six hundred forty-three".