1023312042 has 40 divisors (see below), whose sum is σ = 2427864516. Its totient is φ = 321038208.

The previous prime is 1023312041. The next prime is 1023312049. The reversal of 1023312042 is 2402133201.

It can be written as a sum of positive squares in 2 ways, for example, as 963543681 + 59768361 = 31041^2 + 7731^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1023312041) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 183033 + ... + 188540.

Almost surely, 2^1023312042 is an apocalyptic number.

1023312042 is an abundant number, since it is smaller than the sum of its proper divisors (1404552474).

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

1023312042 is a wasteful number, since it uses less digits than its factorization.

1023312042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371604 (or 371595 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1023312042 is about 31989.2488501997. The cubic root of 1023312042 is about 1007.7110672734.

Adding to 1023312042 its reverse (2402133201), we get a palindrome (3425445243).

The spelling of 1023312042 in words is "one billion, twenty-three million, three hundred twelve thousand, forty-two".