20801293130 has 16 divisors (see below), whose sum is σ = 38733442920. Its totient is φ = 8033602752.

The previous prime is 20801293049. The next prime is 20801293147. The reversal of 20801293130 is 3139210802.

It can be written as a sum of positive squares in 4 ways, for example, as 17795293201 + 3005999929 = 133399^2 + 54827^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 20801293093 and 20801293102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35864009 + ... + 35864588.

Almost surely, 2^20801293130 is an apocalyptic number.

20801293130 is a deficient number, since it is larger than the sum of its proper divisors (17932149790).

20801293130 is a wasteful number, since it uses less digits than its factorization.

20801293130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71728633.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 20801293130 in words is "twenty billion, eight hundred one million, two hundred ninety-three thousand, one hundred thirty".