1121404012231 has 4 divisors (see below), whose sum is σ = 1121462839000. Its totient is φ = 1121345185464.

The previous prime is 1121404012217. The next prime is 1121404012243. The reversal of 1121404012231 is 1322104041211.

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 1121404012231 - 2⁵ = 1121404012199 is a prime.

It is a super-2 number, since 2×1121404012231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121404012291) 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, 29384781 + ... + 29422918.

It is an arithmetic number, because the mean of its divisors is an integer number (280365709750).

Almost surely, 2^{1121404012231} is an apocalyptic number.

1121404012231 is a deficient number, since it is larger than the sum of its proper divisors (58826769).

1121404012231 is an equidigital number, since it uses as much as digits as its factorization.

1121404012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58826768.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1121404012231 its reverse (1322104041211), we get a palindrome (2443508053442).

The spelling of 1121404012231 in words is "one trillion, one hundred twenty-one billion, four hundred four million, twelve thousand, two hundred thirty-one".