1023005120 has 28 divisors (see below), whose sum is σ = 2436031704. Its totient is φ = 409201920.

The previous prime is 1023005101. The next prime is 1023005143. The reversal of 1023005120 is 215003201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1023005095 and 1023005104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1598126 + ... + 1598765.

Almost surely, 2^1023005120 is an apocalyptic number.

1023005120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023005120 is an abundant number, since it is smaller than the sum of its proper divisors (1413026584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023005120 is an equidigital number, since it uses as much as digits as its factorization.

1023005120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196908 (or 3196898 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1023005120 is about 31984.4512224299. The cubic root of 1023005120 is about 1007.6103095995.

Adding to 1023005120 its reverse (215003201), we get a palindrome (1238008321).

The spelling of 1023005120 in words is "one billion, twenty-three million, five thousand, one hundred twenty".