11506451203 has 16 divisors (see below), whose sum is σ = 12573211392. Its totient is φ = 10465812000.

The previous prime is 11506451183. The next prime is 11506451221. The reversal of 11506451203 is 30215460511.

It is a cyclic number.

It is not a de Polignac number, because 11506451203 - 2⁵ = 11506451171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11506451233) 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, 3220408 + ... + 3223978.

It is an arithmetic number, because the mean of its divisors is an integer number (785825712).

Almost surely, 2^11506451203 is an apocalyptic number.

11506451203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11506451203 is a deficient number, since it is larger than the sum of its proper divisors (1066760189).

11506451203 is a wasteful number, since it uses less digits than its factorization.

11506451203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 11506451203 in words is "eleven billion, five hundred six million, four hundred fifty-one thousand, two hundred three".