1023403412 has 12 divisors (see below), whose sum is σ = 1796090100. Its totient is φ = 510234816.

The previous prime is 1023403399. The next prime is 1023403421. The reversal of 1023403412 is 2143043201.

It can be written as a sum of positive squares in 2 ways, for example, as 937951876 + 85451536 = 30626^2 + 9244^2 .

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, 365153 + ... + 367944.

It is an arithmetic number, because the mean of its divisors is an integer number (149674175).

Almost surely, 2^1023403412 is an apocalyptic number.

It is an amenable number.

1023403412 is a deficient number, since it is larger than the sum of its proper divisors (772686688).

1023403412 is a wasteful number, since it uses less digits than its factorization.

1023403412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733450 (or 733448 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1023403412 is about 31990.6769543878. The cubic root of 1023403412 is about 1007.7410587182.

Adding to 1023403412 its reverse (2143043201), we get a palindrome (3166446613).

The spelling of 1023403412 in words is "one billion, twenty-three million, four hundred three thousand, four hundred twelve".