1023421012 has 24 divisors (see below), whose sum is σ = 1899291240. Its totient is φ = 480860160.

The previous prime is 1023420989. The next prime is 1023421013. The reversal of 1023421012 is 2101243201.

It can be written as a sum of positive squares in 4 ways, for example, as 130965136 + 892455876 = 11444^2 + 29874^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023421013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33564 + ... + 56332.

It is an arithmetic number, because the mean of its divisors is an integer number (79137135).

Almost surely, 2^1023421012 is an apocalyptic number.

It is an amenable number.

1023421012 is a deficient number, since it is larger than the sum of its proper divisors (875870228).

1023421012 is a wasteful number, since it uses less digits than its factorization.

1023421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23451 (or 23449 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1023421012 is about 31990.9520333484. The cubic root of 1023421012 is about 1007.7468355672.

Adding to 1023421012 its reverse (2101243201), we get a palindrome (3124664213).

The spelling of 1023421012 in words is "one billion, twenty-three million, four hundred twenty-one thousand, twelve".