4020931281263 has 16 divisors (see below), whose sum is σ = 4333768568640. Its totient is φ = 3708600021504.

The previous prime is 4020931281259. The next prime is 4020931281343. The reversal of 4020931281263 is 3621821390204.

It is a cyclic number.

It is not a de Polignac number, because 4020931281263 - 2² = 4020931281259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4020931281263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020931280263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108911495 + ... + 108948407.

It is an arithmetic number, because the mean of its divisors is an integer number (270860535540).

Almost surely, 2^{4020931281263} is an apocalyptic number.

4020931281263 is a deficient number, since it is larger than the sum of its proper divisors (312837287377).

4020931281263 is a wasteful number, since it uses less digits than its factorization.

4020931281263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43538.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 4020931281263 in words is "four trillion, twenty billion, nine hundred thirty-one million, two hundred eighty-one thousand, two hundred sixty-three".