1121000200231 has 4 divisors (see below), whose sum is σ = 1121011034752. Its totient is φ = 1120989365712.

The previous prime is 1121000200219. The next prime is 1121000200237. The reversal of 1121000200231 is 1320020001211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121000200231 - 2³³ = 1112410265639 is a prime.

It is a super-4 number, since 4×1121000200231⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121000200237) 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, 5260551 + ... + 5469496.

It is an arithmetic number, because the mean of its divisors is an integer number (280252758688).

Almost surely, 2^{1121000200231} is an apocalyptic number.

1121000200231 is a deficient number, since it is larger than the sum of its proper divisors (10834521).

1121000200231 is a wasteful number, since it uses less digits than its factorization.

1121000200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10834520.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1121000200231 its reverse (1320020001211), we get a palindrome (2441020201442).

It can be divided in two parts, 1121000 and 200231, that added together give a palindrome (1321231).

The spelling of 1121000200231 in words is "one trillion, one hundred twenty-one billion, two hundred thousand, two hundred thirty-one".