1023055205642 has 16 divisors (see below), whose sum is σ = 1543573771272. Its totient is φ = 508537466880.

The previous prime is 1023055205581. The next prime is 1023055205647. The reversal of 1023055205642 is 2465025503201.

It can be written as a sum of positive squares in 4 ways, for example, as 601556911201 + 421498294441 = 775601^2 + 649229^2 .

It is not an unprimeable number, because it can be changed into a prime (1023055205647) 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, 1413773 + ... + 2011184.

Almost surely, 2^{1023055205642} is an apocalyptic number.

1023055205642 is a deficient number, since it is larger than the sum of its proper divisors (520518565630).

1023055205642 is a wasteful number, since it uses less digits than its factorization.

1023055205642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425833.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 1023055205642 in words is "one trillion, twenty-three billion, fifty-five million, two hundred five thousand, six hundred forty-two".