1120231621 has 8 divisors (see below), whose sum is σ = 1179677600. Its totient is φ = 1060834320.

The previous prime is 1120231603. The next prime is 1120231631. The reversal of 1120231621 is 1261320211.

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 1120231621 - 2⁷ = 1120231493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120231631) 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, 41095 + ... + 62683.

It is an arithmetic number, because the mean of its divisors is an integer number (147459700).

Almost surely, 2^1120231621 is an apocalyptic number.

It is an amenable number.

1120231621 is a deficient number, since it is larger than the sum of its proper divisors (59445979).

1120231621 is a wasteful number, since it uses less digits than its factorization.

1120231621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24339.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1120231621 is about 33469.8613830413. The cubic root of 1120231621 is about 1038.5704041666.

Adding to 1120231621 its reverse (1261320211), we get a palindrome (2381551832).

The spelling of 1120231621 in words is "one billion, one hundred twenty million, two hundred thirty-one thousand, six hundred twenty-one".