1121231203411 has 8 divisors (see below), whose sum is σ = 1276342239744. Its totient is φ = 974983654920.

The previous prime is 1121231203403. The next prime is 1121231203423. The reversal of 1121231203411 is 1143021321211.

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

It is not a de Polignac number, because 1121231203411 - 2³ = 1121231203403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121231203711) 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, 2215871691 + ... + 2215872196.

It is an arithmetic number, because the mean of its divisors is an integer number (159542779968).

Almost surely, 2^{1121231203411} is an apocalyptic number.

1121231203411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121231203411 is a deficient number, since it is larger than the sum of its proper divisors (155111036333).

1121231203411 is a wasteful number, since it uses less digits than its factorization.

1121231203411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4431743921.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1121231203411 its reverse (1143021321211), we get a palindrome (2264252524622).

The spelling of 1121231203411 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-one million, two hundred three thousand, four hundred eleven".