11873452051 has 4 divisors (see below), whose sum is σ = 12498370600. Its totient is φ = 11248533504.

The previous prime is 11873452043. The next prime is 11873452079. The reversal of 11873452051 is 15025437811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11873452051 - 2³ = 11873452043 is a prime.

It is a super-2 number, since 2×11873452051² (a number of 21 digits) contains 22 as substring.

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 11873452051.

It is not an unprimeable number, because it can be changed into a prime (11873452091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312459246 + ... + 312459283.

It is an arithmetic number, because the mean of its divisors is an integer number (3124592650).

Almost surely, 2^11873452051 is an apocalyptic number.

11873452051 is a deficient number, since it is larger than the sum of its proper divisors (624918549).

11873452051 is an equidigital number, since it uses as much as digits as its factorization.

11873452051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624918548.

The product of its (nonzero) digits is 33600, while the sum is 37.

Adding to 11873452051 its reverse (15025437811), we get a palindrome (26898889862).

The spelling of 11873452051 in words is "eleven billion, eight hundred seventy-three million, four hundred fifty-two thousand, fifty-one".