103451313281 has 2 divisors, whose sum is σ = 103451313282. Its totient is φ = 103451313280.

The previous prime is 103451313191. The next prime is 103451313289. The reversal of 103451313281 is 182313154301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60618871681 + 42832441600 = 246209^2 + 206960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103451313281 is a prime.

It is a super-2 number, since 2×103451313281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103451313289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51725656640 + 51725656641.

It is an arithmetic number, because the mean of its divisors is an integer number (51725656641).

Almost surely, 2^103451313281 is an apocalyptic number.

It is an amenable number.

103451313281 is a deficient number, since it is larger than the sum of its proper divisors (1).

103451313281 is an equidigital number, since it uses as much as digits as its factorization.

103451313281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 103451313281 its reverse (182313154301), we get a palindrome (285764467582).

The spelling of 103451313281 in words is "one hundred three billion, four hundred fifty-one million, three hundred thirteen thousand, two hundred eighty-one".