1131134400021 has 8 divisors (see below), whose sum is σ = 1508197991904. Its totient is φ = 754080204080.

The previous prime is 1131134400017. The next prime is 1131134400041. The reversal of 1131134400021 is 1200044311311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131134400021 - 2² = 1131134400017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131134400041) 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, 2063115 + ... + 2553176.

It is an arithmetic number, because the mean of its divisors is an integer number (188524748988).

Almost surely, 2^{1131134400021} is an apocalyptic number.

It is an amenable number.

1131134400021 is a deficient number, since it is larger than the sum of its proper divisors (377063591883).

1131134400021 is an equidigital number, since it uses as much as digits as its factorization.

1131134400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697971.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1131134400021 its reverse (1200044311311), we get a palindrome (2331178711332).

The spelling of 1131134400021 in words is "one trillion, one hundred thirty-one billion, one hundred thirty-four million, four hundred thousand, twenty-one".