3561130123 has 2 divisors, whose sum is σ = 3561130124. Its totient is φ = 3561130122.

The previous prime is 3561130103. The next prime is 3561130129. The reversal of 3561130123 is 3210311653.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3561130123 - 2²⁵ = 3527575691 is a prime.

It is not a weakly prime, because it can be changed into another prime (3561130129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780565061 + 1780565062.

It is an arithmetic number, because the mean of its divisors is an integer number (1780565062).

Almost surely, 2^3561130123 is an apocalyptic number.

3561130123 is a deficient number, since it is larger than the sum of its proper divisors (1).

3561130123 is an equidigital number, since it uses as much as digits as its factorization.

3561130123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 3561130123 is about 59675.2052614819. The cubic root of 3561130123 is about 1527.0829010741.

Adding to 3561130123 its reverse (3210311653), we get a palindrome (6771441776).

The spelling of 3561130123 in words is "three billion, five hundred sixty-one million, one hundred thirty thousand, one hundred twenty-three".