11512103201 has 4 divisors (see below), whose sum is σ = 11522002992. Its totient is φ = 11502203412.

The previous prime is 11512103189. The next prime is 11512103209. The reversal of 11512103201 is 10230121511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10230121511 = 79 ⋅129495209.

It is a cyclic number.

It is not a de Polignac number, because 11512103201 - 2²² = 11507908897 is a prime.

It is a super-2 number, since 2×11512103201² (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 11512103201.

It is not an unprimeable number, because it can be changed into a prime (11512103209) 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, 4948151 + ... + 4950476.

It is an arithmetic number, because the mean of its divisors is an integer number (2880500748).

Almost surely, 2^11512103201 is an apocalyptic number.

It is an amenable number.

11512103201 is a deficient number, since it is larger than the sum of its proper divisors (9899791).

11512103201 is an equidigital number, since it uses as much as digits as its factorization.

11512103201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9899790.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 11512103201 its reverse (10230121511), we get a palindrome (21742224712).

The spelling of 11512103201 in words is "eleven billion, five hundred twelve million, one hundred three thousand, two hundred one".