263021307323342 has 4 divisors (see below), whose sum is σ = 394531960985016. Its totient is φ = 131510653661670.

The previous prime is 263021307323297. The next prime is 263021307323363. The reversal of 263021307323342 is 243323703120362.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 263021307323342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65755326830834 + ... + 65755326830837.

It is an arithmetic number, because the mean of its divisors is an integer number (98632990246254).

Almost surely, 2^{263021307323342} is an apocalyptic number.

263021307323342 is a deficient number, since it is larger than the sum of its proper divisors (131510653661674).

263021307323342 is a wasteful number, since it uses less digits than its factorization.

263021307323342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131510653661673.

The product of its (nonzero) digits is 653184, while the sum is 41.

The spelling of 263021307323342 in words is "two hundred sixty-three trillion, twenty-one billion, three hundred seven million, three hundred twenty-three thousand, three hundred forty-two".