1011121441 has 8 divisors (see below), whose sum is σ = 1107778464. Its totient is φ = 915253920.

The previous prime is 1011121429. The next prime is 1011121483. The reversal of 1011121441 is 1441211101.

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 1011121441 - 2¹¹ = 1011119393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011121411) 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, 194691 + ... + 199816.

It is an arithmetic number, because the mean of its divisors is an integer number (138472308).

Almost surely, 2^1011121441 is an apocalyptic number.

1011121441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1011121441 is a deficient number, since it is larger than the sum of its proper divisors (96657023).

1011121441 is a wasteful number, since it uses less digits than its factorization.

1011121441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394751.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 1011121441 is about 31798.1358101383. The cubic root of 1011121441 is about 1003.6934883485.

Adding to 1011121441 its reverse (1441211101), we get a palindrome (2452332542).

The spelling of 1011121441 in words is "one billion, eleven million, one hundred twenty-one thousand, four hundred forty-one".