11520526311451 has 8 divisors (see below), whose sum is σ = 11696384674800. Its totient is φ = 11345699376000.

The previous prime is 11520526311421. The next prime is 11520526311487. The reversal of 11520526311451 is 15411362502511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11520526311451 - 2¹¹ = 11520526309403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11520526311451.

It is not an unprimeable number, because it can be changed into a prime (11520526311401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257834466 + ... + 257879143.

It is an arithmetic number, because the mean of its divisors is an integer number (1462048084350).

Almost surely, 2^{11520526311451} is an apocalyptic number.

11520526311451 is a deficient number, since it is larger than the sum of its proper divisors (175858363349).

11520526311451 is an equidigital number, since it uses as much as digits as its factorization.

11520526311451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515713949.

The product of its (nonzero) digits is 36000, while the sum is 37.

Adding to 11520526311451 its reverse (15411362502511), we get a palindrome (26931888813962).

The spelling of 11520526311451 in words is "eleven trillion, five hundred twenty billion, five hundred twenty-six million, three hundred eleven thousand, four hundred fifty-one".