11145252051 has 16 divisors (see below), whose sum is σ = 16744043520. Its totient is φ = 7325516520.

The previous prime is 11145252023. The next prime is 11145252061. The reversal of 11145252051 is 15025254111.

It is a happy number.

11145252051 is a `hidden beast` number, since 1 + 1 + 1 + 452 + 5 + 205 + 1 = 666.

It is not a de Polignac number, because 11145252051 - 2⁹ = 11145251539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11145252011) 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, 2905035 + ... + 2908868.

It is an arithmetic number, because the mean of its divisors is an integer number (1046502720).

Almost surely, 2^11145252051 is an apocalyptic number.

11145252051 is a deficient number, since it is larger than the sum of its proper divisors (5598791469).

11145252051 is an equidigital number, since it uses as much as digits as its factorization.

11145252051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813983 (or 5813977 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The spelling of 11145252051 in words is "eleven billion, one hundred forty-five million, two hundred fifty-two thousand, fifty-one".