1121231441 has 8 divisors (see below), whose sum is σ = 1223510400. Its totient is φ = 1019010640.

The previous prime is 1121231411. The next prime is 1121231453. The reversal of 1121231441 is 1441321211.

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 1121231441 - 2¹⁴ = 1121215057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121231411) 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, 32375 + ... + 57363.

It is an arithmetic number, because the mean of its divisors is an integer number (152938800).

Almost surely, 2^1121231441 is an apocalyptic number.

1121231441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121231441 is a deficient number, since it is larger than the sum of its proper divisors (102278959).

1121231441 is a wasteful number, since it uses less digits than its factorization.

1121231441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29079.

The product of its digits is 192, while the sum is 20.

The square root of 1121231441 is about 33484.7941758644. The cubic root of 1121231441 is about 1038.8792910884.

Adding to 1121231441 its reverse (1441321211), we get a palindrome (2562552652).

The spelling of 1121231441 in words is "one billion, one hundred twenty-one million, two hundred thirty-one thousand, four hundred forty-one".