1361241689123 has 2 divisors, whose sum is σ = 1361241689124. Its totient is φ = 1361241689122.

The previous prime is 1361241689111. The next prime is 1361241689173. The reversal of 1361241689123 is 3219861421631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1361241689123 - 2⁴ = 1361241689107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361241689173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680620844561 + 680620844562.

It is an arithmetic number, because the mean of its divisors is an integer number (680620844562).

Almost surely, 2^{1361241689123} is an apocalyptic number.

1361241689123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361241689123 is an equidigital number, since it uses as much as digits as its factorization.

1361241689123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 47.

The spelling of 1361241689123 in words is "one trillion, three hundred sixty-one billion, two hundred forty-one million, six hundred eighty-nine thousand, one hundred twenty-three".