20311610602642 has 8 divisors (see below), whose sum is σ = 30467549677500. Its totient is φ = 10155760710144.

The previous prime is 20311610602627. The next prime is 20311610602643. The reversal of 20311610602642 is 24620601611302.

It can be written as a sum of positive squares in 2 ways, for example, as 19892679334641 + 418931268001 = 4460121^2 + 647249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20311610602598 and 20311610602607.

It is not an unprimeable number, because it can be changed into a prime (20311610602643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21723267 + ... + 22638982.

Almost surely, 2^{20311610602642} is an apocalyptic number.

20311610602642 is a deficient number, since it is larger than the sum of its proper divisors (10155939074858).

20311610602642 is a wasteful number, since it uses less digits than its factorization.

20311610602642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44591180.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 20311610602642 in words is "twenty trillion, three hundred eleven billion, six hundred ten million, six hundred two thousand, six hundred forty-two".