1143100021 has 8 divisors (see below), whose sum is σ = 1375158080. Its totient is φ = 928231488.

The previous prime is 1143100001. The next prime is 1143100027. The reversal of 1143100021 is 1200013411.

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 1143100021 - 2²¹ = 1141002869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143099974 and 1143100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143100027) 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, 4297236 + ... + 4297501.

It is an arithmetic number, because the mean of its divisors is an integer number (171894760).

Almost surely, 2^1143100021 is an apocalyptic number.

It is an amenable number.

1143100021 is a deficient number, since it is larger than the sum of its proper divisors (232058059).

1143100021 is an equidigital number, since it uses as much as digits as its factorization.

1143100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8594763.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1143100021 is about 33809.7622144847. The cubic root of 1143100021 is about 1045.5899756847.

Adding to 1143100021 its reverse (1200013411), we get a palindrome (2343113432).

The spelling of 1143100021 in words is "one billion, one hundred forty-three million, one hundred thousand, twenty-one".