11355451051 has 24 divisors (see below), whose sum is σ = 13550673840. Its totient is φ = 9482925312.

The previous prime is 11355451031. The next prime is 11355451057. The reversal of 11355451051 is 15015455311.

It is a happy number.

It is not a de Polignac number, because 11355451051 - 2²⁷ = 11221233323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11355451057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 855175 + ... + 868351.

It is an arithmetic number, because the mean of its divisors is an integer number (564611410).

Almost surely, 2^11355451051 is an apocalyptic number.

11355451051 is a deficient number, since it is larger than the sum of its proper divisors (2195222789).

11355451051 is a wasteful number, since it uses less digits than its factorization.

11355451051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13643 (or 13636 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 11355451051 in words is "eleven billion, three hundred fifty-five million, four hundred fifty-one thousand, fifty-one".