12011125403553 has 8 divisors (see below), whose sum is σ = 16018760054400. Its totient is φ = 8005453844208.

The previous prime is 12011125403539. The next prime is 12011125403603. The reversal of 12011125403553 is 35530452111021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12011125403553 - 2⁸ = 12011125403297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011125403153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490758598 + ... + 490783071.

It is an arithmetic number, because the mean of its divisors is an integer number (2002345006800).

Almost surely, 2^{12011125403553} is an apocalyptic number.

It is an amenable number.

12011125403553 is a deficient number, since it is larger than the sum of its proper divisors (4007634650847).

12011125403553 is an equidigital number, since it uses as much as digits as its factorization.

12011125403553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981545751.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 12011125403553 its reverse (35530452111021), we get a palindrome (47541577514574).

The spelling of 12011125403553 in words is "twelve trillion, eleven billion, one hundred twenty-five million, four hundred three thousand, five hundred fifty-three".