11520514644623 has 2 divisors, whose sum is σ = 11520514644624. Its totient is φ = 11520514644622.

The previous prime is 11520514644563. The next prime is 11520514644631. The reversal of 11520514644623 is 32644641502511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11520514644623 - 2⁶ = 11520514644559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11520514644643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760257322311 + 5760257322312.

It is an arithmetic number, because the mean of its divisors is an integer number (5760257322312).

Almost surely, 2^{11520514644623} is an apocalyptic number.

11520514644623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11520514644623 is an equidigital number, since it uses as much as digits as its factorization.

11520514644623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 11520514644623 in words is "eleven trillion, five hundred twenty billion, five hundred fourteen million, six hundred forty-four thousand, six hundred twenty-three".