1024021121 has 4 divisors (see below), whose sum is σ = 1030153152. Its totient is φ = 1017889092.

The previous prime is 1024021057. The next prime is 1024021127. The reversal of 1024021121 is 1211204201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1024021121 - 2⁶ = 1024021057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1024021096 and 1024021105.

It is not an unprimeable number, because it can be changed into a prime (1024021127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3065765 + ... + 3066098.

It is an arithmetic number, because the mean of its divisors is an integer number (257538288).

Almost surely, 2^1024021121 is an apocalyptic number.

It is an amenable number.

1024021121 is a deficient number, since it is larger than the sum of its proper divisors (6132031).

1024021121 is an equidigital number, since it uses as much as digits as its factorization.

1024021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6132030.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1024021121 is about 32000.3300139233. The cubic root of 1024021121 is about 1007.9437697621.

Adding to 1024021121 its reverse (1211204201), we get a palindrome (2235225322).

The spelling of 1024021121 in words is "one billion, twenty-four million, twenty-one thousand, one hundred twenty-one".