11511401253 has 16 divisors (see below), whose sum is σ = 16993767936. Its totient is φ = 6872477040.

The previous prime is 11511401221. The next prime is 11511401263. The reversal of 11511401253 is 35210411511.

It is not a de Polignac number, because 11511401253 - 2⁵ = 11511401221 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11511401263) 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, 2601001 + ... + 2605422.

It is an arithmetic number, because the mean of its divisors is an integer number (1062110496).

Almost surely, 2^11511401253 is an apocalyptic number.

It is an amenable number.

11511401253 is a deficient number, since it is larger than the sum of its proper divisors (5482366683).

11511401253 is a wasteful number, since it uses less digits than its factorization.

11511401253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206504.

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

Adding to 11511401253 its reverse (35210411511), we get a palindrome (46721812764).

The spelling of 11511401253 in words is "eleven billion, five hundred eleven million, four hundred one thousand, two hundred fifty-three".