1134221113421 has 4 divisors (see below), whose sum is σ = 1237332123744. Its totient is φ = 1031110103100.

The previous prime is 1134221113409. The next prime is 1134221113423. The reversal of 1134221113421 is 1243111224311.

It is a happy number.

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.

It is a de Polignac number, because none of the positive numbers 2^k-1134221113421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1134221113423) 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, 51555505145 + ... + 51555505166.

It is an arithmetic number, because the mean of its divisors is an integer number (309333030936).

Almost surely, 2^{1134221113421} is an apocalyptic number.

1134221113421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1134221113421 is a deficient number, since it is larger than the sum of its proper divisors (103111010323).

1134221113421 is a wasteful number, since it uses less digits than its factorization.

1134221113421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103111010322.

The product of its digits is 1152, while the sum is 26.

Adding to 1134221113421 its reverse (1243111224311), we get a palindrome (2377332337732).

The spelling of 1134221113421 in words is "one trillion, one hundred thirty-four billion, two hundred twenty-one million, one hundred thirteen thousand, four hundred twenty-one".