1023200012042 has 16 divisors (see below), whose sum is σ = 1654155943272. Its totient is φ = 471876335040.

The previous prime is 1023200012041. The next prime is 1023200012129. The reversal of 1023200012042 is 2402100023201.

It can be written as a sum of positive squares in 4 ways, for example, as 989605154521 + 33594857521 = 994789^2 + 183289^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1023200012042.

It is not an unprimeable number, because it can be changed into a prime (1023200012041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15375509 + ... + 15441912.

Almost surely, 2^{1023200012042} is an apocalyptic number.

1023200012042 is a deficient number, since it is larger than the sum of its proper divisors (630955931230).

1023200012042 is a wasteful number, since it uses less digits than its factorization.

1023200012042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30818713.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1023200012042 its reverse (2402100023201), we get a palindrome (3425300035243).

The spelling of 1023200012042 in words is "one trillion, twenty-three billion, two hundred million, twelve thousand, forty-two".