11451011523 has 16 divisors (see below), whose sum is σ = 18367537920. Its totient is φ = 6199043616.

The previous prime is 11451011441. The next prime is 11451011569. The reversal of 11451011523 is 32511015411.

It is not a de Polignac number, because 11451011523 - 2¹³ = 11451003331 is a prime.

It is a super-2 number, since 2×11451011523² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11451011493 and 11451011502.

It is not an unprimeable number, because it can be changed into a prime (11451011573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14349240 + ... + 14350037.

It is an arithmetic number, because the mean of its divisors is an integer number (1147971120).

Almost surely, 2^11451011523 is an apocalyptic number.

11451011523 is a deficient number, since it is larger than the sum of its proper divisors (6916526397).

11451011523 is a wasteful number, since it uses less digits than its factorization.

11451011523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28699306.

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 11451011523 its reverse (32511015411), we get a palindrome (43962026934).

The spelling of 11451011523 in words is "eleven billion, four hundred fifty-one million, eleven thousand, five hundred twenty-three".