1023203402 has 24 divisors (see below), whose sum is σ = 1706887116. Its totient is φ = 459478656.

The previous prime is 1023203399. The next prime is 1023203417. The reversal of 1023203402 is 2043023201.

It can be written as a sum of positive squares in 6 ways, for example, as 98982601 + 924220801 = 9949^2 + 30401^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 28403 + ... + 53414.

Almost surely, 2^1023203402 is an apocalyptic number.

1023203402 is a deficient number, since it is larger than the sum of its proper divisors (683683714).

1023203402 is a wasteful number, since it uses less digits than its factorization.

1023203402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81882 (or 81869 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1023203402 is about 31987.5507346217. The cubic root of 1023203402 is about 1007.6754047709.

Adding to 1023203402 its reverse (2043023201), we get a palindrome (3066226603).

The spelling of 1023203402 in words is "one billion, twenty-three million, two hundred three thousand, four hundred two".