1023005121 has 8 divisors (see below), whose sum is σ = 1364487360. Its totient is φ = 681763152.

The previous prime is 1023005101. The next prime is 1023005143. The reversal of 1023005121 is 1215003201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1023005121 - 2⁵ = 1023005089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023005121.

It is not an unprimeable number, because it can be changed into a prime (1023005101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49885 + ... + 67338.

It is an arithmetic number, because the mean of its divisors is an integer number (170560920).

Almost surely, 2^1023005121 is an apocalyptic number.

It is an amenable number.

1023005121 is a deficient number, since it is larger than the sum of its proper divisors (341482239).

1023005121 is a wasteful number, since it uses less digits than its factorization.

1023005121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120135.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1023005121 is about 31984.4512380625. The cubic root of 1023005121 is about 1007.6103099278.

Adding to 1023005121 its reverse (1215003201), we get a palindrome (2238008322).

The spelling of 1023005121 in words is "one billion, twenty-three million, five thousand, one hundred twenty-one".